Author: Ameeba

Overview

This report discusses a significant vulnerability found in TP-Link TL-WR841N V11 devices. This vulnerability, identified as CVE-2025-53715, could potentially compromise the system or lead to data leakage. As the devices affected are no longer supported by the maintainer, it’s necessary for users to be aware and take corrective measures.

Vulnerability Summary

CVE ID: CVE-2025-53715
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage. The vulnerability may cause a crash of the web service, resulting in a denial-of-service (DoS) condition.

Affected Products

Product | Affected Versions

TP-Link TL-WR841N | V11

How the Exploit Works

The vulnerability resides in the /userRpm/Wan6to4TunnelCfgRpm.htm file. It stems from a lack of proper input parameter validation, which can lead to a buffer overflow. An attacker can exploit this by sending maliciously crafted packets to the target device, which can cause the web service to crash, leading to a denial-of-service condition. Furthermore, it may also potentially compromise the system or lead to data leakage.

Conceptual Example Code

An example of how the vulnerability might be exploited is shown below. In this case, the attacker uses a POST request to send maliciously crafted data to the vulnerable endpoint.

POST /userRpm/Wan6to4TunnelCfgRpm.htm HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
{ "buffer_overflow_payload": "..." }

Mitigation and Prevention

The most effective way to mitigate this vulnerability is to apply a vendor patch. If that’s not available, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation. Users are strongly advised to upgrade their devices to a version that is supported by the maintainer to continue receiving security updates and fixes.

Overview

The report presents a critical vulnerability discovered in TP-Link TL-WR841N V11, a product no longer supported by the maintainer. The vulnerability is associated with a lack of input parameter validation in a specific file, resulting in potential system crashes and denial-of-service (DoS) condition. This vulnerability matters as it can be exploited remotely, potentially compromising systems or leading to data leakage.

Vulnerability Summary

CVE ID: CVE-2025-53714
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

TP-Link TL-WR841N | V11

How the Exploit Works

The exploit takes advantage of the lack of input parameter validation in the /userRpm/WzdWlanSiteSurveyRpm_AP.htm file. The attacker can send a specially crafted request to overflow the buffer, causing the web service to crash and resulting in a denial-of-service. This can potentially lead to system compromise or data leakage.

Conceptual Example Code

Below is a hypothetical example of how the vulnerability could be exploited using a malicious HTTP request:

GET /userRpm/WzdWlanSiteSurveyRpm_AP.htm?malicious_payload HTTP/1.1
Host: vulnerable.router.com

In this example, `malicious_payload` is a specially designed string that causes buffer overflow in the targeted system, leading to service disruption.

Mitigation Guidance

Users are advised to apply the vendor-supplied patch to resolve this vulnerability. In the absence of a patch, the use of web application firewall (WAF) or intrusion detection systems (IDS) may serve as a temporary mitigation measure. Regular updates and patches from the vendor are highly recommended to prevent such vulnerabilities.

Overview

This report covers a critical vulnerability discovered in TP-Link TL-WR841N V11, specifically the /userRpm/WlanNetworkRpm_APC.htm file. The vulnerability, identified as CVE-2025-53713, arises due to lack of input parameter validation, leading to buffer overflow. The potential impact of this vulnerability is severe, including system crashes and a denial-of-service (DoS) condition. As this vulnerability can be exploited remotely and affects products no longer supported by the maintainer, the risk is heightened.

Vulnerability Summary

CVE ID: CVE-2025-53713
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise, data leakage, and DoS condition

Affected Products

Product | Affected Versions

TP-Link TL-WR841N | V11

How the Exploit Works

The exploit takes advantage of a lack of input parameter validation in the /userRpm/WlanNetworkRpm_APC.htm file. By sending specially crafted data, an attacker can overflow the buffer, causing the web service to crash and possibly leading to a denial-of-service condition. The attack can be launched remotely, increasing the potential risk.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited using a malicious HTTP POST request:

POST /userRpm/WlanNetworkRpm_APC.htm HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "input_parameter": "A"*10000 } // A large amount of data to overflow the buffer

This example involves sending an oversized amount of data (‘A’*10000) as the input parameter, thereby exploiting the lack of input validation and overflowing the buffer.

Mitigation Guidance

As the affected products are no longer supported by the maintainer, the primary mitigation is to apply the vendor patch. For temporary mitigation, use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS), which can detect and block attempts to exploit this vulnerability.

Overview

The CVE-2025-53712 vulnerability pertains to the TP-Link TL-WR841N V11 router, specifically an issue in the /userRpm/WlanNetworkRpm_AP.htm file. The defect arises due to the absence of proper input parameter validation, which could potentially lead to a buffer overflow. This can result in a crash of the web service, causing a denial-of-service (DoS) condition. The vulnerability is of particular concern as it can be exploited remotely, impacting systems that no longer receive support from the maintainer.

Vulnerability Summary

CVE ID: CVE-2025-53712
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System Crash, Denial-of-Service (DoS) Condition, Potential system compromise and data leakage

Affected Products

Product | Affected Versions

TP-Link TL-WR841N | V11

How the Exploit Works

The exploit takes advantage of a lack of input parameter validation in the /userRpm/WlanNetworkRpm_AP.htm file. The attacker can send malicious data to this file, causing a buffer overflow. This overflow can lead to a crash in the web service, resulting in a Denial-of-Service (DoS) condition. Since the affected product is not supported by the maintainer, the vulnerability is particularly grave.

Conceptual Example Code

An example of how this might be exploited could look like the following HTTP request:

POST /userRpm/WlanNetworkRpm_AP.htm HTTP/1.1
Host: target-router-ip
Content-Length: [buffer length + overflow data]
{ "input_param": "A"*10000 }

In this conceptual example, the “input_param” is filled with a large amount of data (“A”*10000) to cause a buffer overflow. Please note that this is a conceptual example and actual exploitation might require a deeper understanding of the target system and the vulnerability itself.

Overview

The CVE-2025-53711 vulnerability pertains to the TP-Link TL-WR841N V11 wireless router. This vulnerability has the potential to cause a denial-of-service (DoS) condition due to a buffer overflow in the /userRpm/WlanNetworkRpm.htm file. The affected product is no longer supported by the vendor, making it an ideal target for attackers.

Vulnerability Summary

CVE ID: CVE-2025-53711
Severity: High (7.5 – CVSS score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Denial-of-service (DoS) condition, potential system compromise or data leakage.

Affected Products

Product | Affected Versions

TP-Link TL-WR841N | V11

How the Exploit Works

The vulnerability exists due to missing input validation in the /userRpm/WlanNetworkRpm.htm file. An attacker could exploit this vulnerability by sending a specially crafted request to the affected router, causing a buffer overflow that could lead to a crash of the web service and result in a denial-of-service (DoS) condition. This attack can be launched remotely.

Conceptual Example Code

A conceptual example of how the vulnerability might be exploited is shown below:

GET /userRpm/WlanNetworkRpm.htm?malicious_payload HTTP/1.1
Host: vulnerable_router_ip

In this example, `malicious_payload` could be a string designed to overflow the buffer, causing a crash of the web service.

Mitigation Guidance

Users are advised to apply the vendor patch to address this vulnerability as soon as it becomes available. In the meantime, as temporary mitigation, users are suggested to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS).

Overview

CVE-2024-42645 is a critical vulnerability in FlashMQ v1.14.0 which, if exploited, allows attackers to cause a Denial of Service (DoS) via a crafted retain message. This vulnerability is significant as it can potentially lead to system compromise or data leakage, impacting businesses and organizations using the affected software.

Vulnerability Summary

CVE ID: CVE-2024-42645
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Denial of Service, potential system compromise, and data leakage.

Affected Products

Product | Affected Versions

FlashMQ | v1.14.0

How the Exploit Works

The vulnerability exists due to an assertion failure in FlashMQ v1.14.0. An attacker can exploit this by sending a crafted retain message to the target system. This causes the system to fail, resulting in a Denial of Service. If not properly mitigated, this could potentially lead to a system compromise or data leakage.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. This could be a crafted retain message sent to the target system over the network.

POST /retain/message HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "crafted_message": "..." }

Recommendations

To mitigate this vulnerability, users are advised to apply the vendor patch as soon as it is available. If the patch is not yet available, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation. Regular monitoring and updating of software are also recommended to prevent future vulnerabilities.

Overview

The vulnerability, identified as CVE-2024-42644, is present in FlashMQ v1.14.0, a popular messaging and queuing software. This vulnerability is due to an assertion failure in the function PublishCopyFactory::getNewPublish. Attackers could exploit this vulnerability to potentially compromise the system or leak sensitive data. Given the widespread use of FlashMQ, this vulnerability poses a significant risk to numerous systems and data worldwide.

Vulnerability Summary

CVE ID: CVE-2024-42644
Severity: High (7.5)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: System Compromise or Data Leakage

Affected Products

Product | Affected Versions

FlashMQ | v1.14.0

How the Exploit Works

The vulnerability exploits an assertion failure in the PublishCopyFactory::getNewPublish function of FlashMQ v1.14.0. When the Quality of Service (QoS) value of the publish object exceeds 0, the assertion failure is triggered. This results in abnormal termination of the service, creating an avenue for attackers to exploit the system or leak data.

Conceptual Example Code

The conceptual example below shows how a malicious actor might exploit this vulnerability through a network request with an excessive QoS value:

POST /publish HTTP/1.1
Host: vulnerable.flashmq.com
Content-Type: application/json
{ "QoS": 2, "topic": "test", "message": "test message" }

In this example, the QoS value is set to 2, which is greater than the expected maximum value of 0. This would trigger the assertion failure, potentially leading to system compromise or data leakage.

Mitigation

Users are urged to apply the vendor patch as soon as it becomes available. Until then, use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation against potential exploitation of this vulnerability.

Overview

The Bricks theme for WordPress carries a significant vulnerability up to version 1.12.4, which opens the door for potential SQL injection attacks. This vulnerability is a major concern for any website built with the Bricks theme, given its potential to compromise systems and leak data. Therefore, it is imperative for all users to take immediate action to mitigate the risks.

Vulnerability Summary

CVE ID: CVE-2025-6495
Severity: High (CVSS: 7.5)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Bricks WordPress Theme | All versions up to 1.12.4

How the Exploit Works

The vulnerability lies in the ‘p’ parameter, where user-supplied input is not sufficiently escaped. This flaw allows an attacker to inject malicious SQL queries into the existing SQL query. As a result, an unauthenticated attacker can manipulate the database, extract sensitive information, and potentially gain unauthorized access to the system.

Conceptual Example Code

The following conceptual HTTP request demonstrates how the vulnerability might be exploited:

GET /?p=1 UNION SELECT 1,username,password FROM users-- HTTP/1.1
Host: vulnerablewebsite.com

In this example, the attacker is appending a SQL UNION SELECT statement to the ‘p’ parameter. This could potentially fetch sensitive data from the database, such as usernames and passwords, if successful.

Mitigation Guidance

Users are advised to immediately apply the vendor patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Regularly updating all systems and conducting thorough security scans can also help prevent future vulnerabilities.

Overview

The vulnerability CVE-2025-8194 pertains to a defect found in the “tarfile” module of CPython, affecting the “TarFile” extraction and entry enumeration APIs. This vulnerability can lead to a system deadlock, triggered by the incorrect handling of tar archives with negative offsets. This poses a significant risk to any system or application using the affected versions of CPython, potentially leading to unauthorized system access, data leakage, or even full system compromise.

Vulnerability Summary

CVE ID: CVE-2025-8194
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

CPython | All versions prior to patch

How the Exploit Works

The exploit takes advantage of a flaw in the tarfile module of CPython. When processing tar archives with negative offsets, the tar implementation enters an infinite loop, resulting in a deadlock. This can be leveraged by an attacker to craft a malicious tar archive that, when processed, would cause the system or application to hang indefinitely. This could potentially allow for further malicious activity, such as unauthorized system access or data leakage.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited:

import tarfile
def malicious_archive():
with tarfile.open("malicious.tar", "w") as tar:
# Create a tarinfo object with negative offset
info = tarfile.TarInfo(name="malicious_file")
info.offset = -99999
# Add the malicious tarinfo object to the tar archive
tar.addfile(info)
# Execute the function to create the malicious archive
malicious_archive()

This code creates a tar archive containing a file with a negative offset. When this archive is processed by the affected versions of CPython, it would trigger the infinite loop and deadlock.

Overview

This report outlines the details of a significant vulnerability identified as CVE-2025-50492. This critical issue affects PHPGurukul’s e-Diary Management System, particularly the /edms/change-password.php component. It opens a door for attackers to hijack sessions, potentially leading to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-50492
Severity: High (7.5 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

PHPGurukul e-Diary Management System | v1

How the Exploit Works

The vulnerability arises from improper session invalidation in the change-password component of the e-Diary Management System. This flaw allows cybercriminals to hijack active sessions and gain unauthorized access to the system. By exploiting this vulnerability, an attacker could potentially alter system data or even assume control of the system.

Conceptual Example Code

Here is a conceptual example of how an attacker might exploit this vulnerability. In this case, the attacker sends a malicious HTTP request to the change-password endpoint.

POST /edms/change-password.php HTTP/1.1
Host: target.example.com
Cookie: PHPSESSID=attacker_session_id
{ "new_password": "attacker_password" }

In this scenario, the attacker has already hijacked an active session (represented by “attacker_session_id”) and attempts to change the password associated with that session.

Workarounds and Mitigation

Users of the PHPGurukul e-Diary Management System are strongly advised 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 mitigate the risk associated with this vulnerability. Regularly checking for abnormal activities and conducting security audits can also aid in detecting and preventing potential exploits.