Author: Ameeba

Overview

The vulnerability CVE-2025-8139 is a critical security flaw discovered in TOTOLINK A702R 4.0.0-B20230721.1521. This vulnerability has been classified as critical due to its potential to compromise systems or leak data. The flaw lies within an unknown part of the file /boafrm/formPortFw of HTTP POST Request Handler. This vulnerability has wide-reaching implications, affecting all users of this software and presenting a significant risk due to its potential for remote initiation.
With the vulnerability details now publicly available, it’s critical that users take immediate steps to mitigate the risk. The severity and potential impact of this vulnerability underline the importance of robust cybersecurity practices and timely application of patches and updates.

Vulnerability Summary

CVE ID: CVE-2025-8139
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 A702R | 4.0.0-B20230721.1521

How the Exploit Works

The vulnerability is a type of buffer overflow attack, a common type of cybersecurity threat. This particular vulnerability is exploited by manipulating the ‘service_type’ argument in an HTTP POST Request to the /boafrm/formPortFw file, leading to an overflow of the buffer. This overflow can potentially allow an attacker to overwrite data in the memory of the system, execute arbitrary code, or cause a system crash.

Conceptual Example Code

Here is a conceptual example of how an HTTP POST request might be manipulated to exploit the vulnerability. This is not actual exploit code, but a simplified version to help understand the process.

POST /boafrm/formPortFw HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
service_type=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

In this example, the ‘service_type’ argument is filled with an excessively long string of ‘A’s, causing the buffer to overflow.

Prevention and Mitigation

The primary mitigation strategy for this vulnerability would be to apply the patch provided by the vendor. If a patch is not immediately available, or if it’s not feasible to apply it immediately, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can be used as temporary mitigation. These can provide some level of protection by detecting and preventing known malicious patterns. However, they should not be considered a long-term solution, and the vendor’s patch should be applied as soon as possible.

Overview

The Common Vulnerabilities and Exposures (CVE) system has recently detailed a critical vulnerability with the identifier CVE-2025-8138, found in TOTOLINK A702R version 4.0.0-B20230721.1521. This vulnerability, if exploited, can lead to serious security breaches, system compromise, and potential data leakage. It is of critical importance to any individual or organization using the affected TOTOLINK product to understand and mitigate this vulnerability as soon as possible.

Vulnerability Summary

CVE ID: CVE-2025-8138
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

TOTOLINK A702R | 4.0.0-B20230721.1521

How the Exploit Works

The vulnerability resides in an unknown functionality of the file /boafrm/formOneKeyAccessButton in the HTTP POST Request Handler component of the TOTOLINK A702R firmware. The exploitation of this vulnerability involves the manipulation of the ‘submit-url’ argument, which can cause a buffer overflow. This buffer overflow may then result in undefined behavior, potentially leading to system compromise and data leakage.

Conceptual Example Code

An attacker might exploit this vulnerability by sending a maliciously crafted HTTP POST request similar to the following:

POST /boafrm/formOneKeyAccessButton HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
submit-url=www.example.com%00[insert malicious payload here]

In this example, the ‘submit-url’ argument is appended with a null byte (%00) followed by a malicious payload. This causes an overflow in the buffer that stores the ‘submit-url’ data, which can lead to unintended consequences, potentially compromising the system and leaking data.

Mitigation Guidance

It is highly recommended to apply a vendor-supplied patch as soon as possible. If a patch is not immediately available or feasible, consider using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to temporarily mitigate the vulnerability by monitoring network traffic and blocking or alerting on suspicious activity.

Overview

The cybersecurity world is currently dealing with a critical vulnerability identified as CVE-2025-8137. This flaw was discovered in TOTOLINK A702R 4.0.0-B20230721.1521, which is widely used in the networking domain. The severity of the issue is heightened because the vulnerability affects an unknown functionality of the file /boafrm/formIpQoS, a component of the HTTP POST Request Handler. This vulnerability matters because it can potentially lead to system compromise or data leakage, and the exploit has been publicly disclosed, making it accessible to malicious actors.

Vulnerability Summary

CVE ID: CVE-2025-8137
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

TOTOLINK A702R | 4.0.0-B20230721.1521

How the Exploit Works

The vulnerability exploits an argument called ‘mac‘ in the HTTP POST Request Handler. The flaw originates from incorrect buffer handling in the /boafrm/formIpQoS file. The manipulation of the ‘mac’ argument can lead to a buffer overflow condition. Buffer overflow vulnerabilities can allow an attacker to overwrite data in memory, potentially leading to the execution of arbitrary code, system crashes, or a breach of data integrity.

Conceptual Example Code

Although the exact exploit code has not been provided to maintain ethical boundaries, a conceptual example of how this vulnerability might be exploited could look like the following HTTP POST request:

POST /boafrm/formIpQoS HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "mac": "OVERFLOW_STRING" }

In this example, “OVERFLOW_STRING” would be a specially crafted string that is longer than the buffer can handle, causing it to overflow.

Countermeasures and Mitigation

Users are advised to apply the vendor patch as soon as it becomes available to address this vulnerability. In the meantime, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation, helping to detect and prevent exploit attempts. Regularly updating and patching your systems is the best measure to protect against such vulnerabilities.

Overview

CVE-2025-8136 is a critical vulnerability discovered in TOTOLINK A702R 4.0.0-B20230721.1521. This vulnerability is particularly concerning as it affects the HTTP POST Request Handler, one of the most critical components of a web server. More specifically, the issue arises in an undisclosed function of the file /boafrm/formFilter. The vulnerability can be exploited remotely, meaning that an attacker does not need physical access to the device to compromise it. Therefore, it is essential for organizations using TOTOLINK A702R to address this issue promptly to prevent potential system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-8136
Severity: Critical (8.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

TOTOLINK A702R | 4.0.0-B20230721.1521

How the Exploit Works

The exploit works by manipulating the ‘ip6addr’ argument within the HTTP POST Request Handler. This manipulation causes a buffer overflow in the system. In computing, a buffer overflow occurs when data written to a buffer exceeds its storage capacity, causing the extra data to overflow into adjacent memory locations. This overflow can overwrite other data, crash the system, or lead to the execution of malicious code, potentially granting an attacker control over the system.

Conceptual Example Code

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

POST /boafrm/formFilter HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "ip6addr": "2001:0db8:85a3:0000:0000:8a2e:0370:7334" + "A"*10000 }

In this example, the ‘ip6addr’ argument is filled with a legitimate IPv6 address, followed by a large number of ‘A’ characters. The excessive ‘A’ characters cause a buffer overflow, potentially allowing an attacker to compromise the system.

Mitigation Measures

Users of TOTOLINK A702R 4.0.0-B20230721.1521 are advised to apply the vendor patch as soon as it becomes available. In the meantime, temporary mitigation strategies could include the use of a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to monitor network traffic and block any suspicious activity. It’s also advisable to restrict access to the affected device to trusted networks only, until the patch is applied.

Overview

This blog post aims to provide an in-depth understanding of the CVE-2025-5835 vulnerability. The Droip plugin for WordPress, utilized widely for enriching the functionality of WordPress sites, has been detected with a substantial security flaw that could lead to unauthorized modification and access of data. This vulnerability affects all versions of the Droip plugin up to, and including, 2.2.0. Hence, it is crucial for all WordPress website administrators and developers employing the Droip plugin to understand and mitigate this vulnerability promptly to protect their systems and data.

Vulnerability Summary

CVE ID: CVE-2025-5835
Severity: High (8.8)
Attack Vector: Network
Privileges Required: Low (Subscriber-level access)
User Interaction: Required
Impact: Unauthorized modification and access of data, potential system compromise or data leakage

Affected Products

Product | Affected Versions

Droip Plugin for WordPress | Up to and including 2.2.0

How the Exploit Works

The vulnerability originates from a missing capability check on the `droip_post_apis()` function in the Droip plugin for WordPress. This flaw allows authenticated attackers, possessing at least Subscriber-level access, to perform various actions utilizing the AJAX hooks to several functions. The potential impacts include arbitrary post deletion, arbitrary post creation, post duplication, settings updates, user manipulation, and more, leading to unauthorized data access and modification.

Conceptual Example Code

Here is a basic conceptual example of how an attacker might exploit this vulnerability:

POST /wp-admin/admin-ajax.php HTTP/1.1
Host: vulnerablewebsite.com
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
action=droip_post_apis&post_id=123&new_status=deleted

In the above example, a malicious attacker with Subscriber-level access could send a POST request to `admin-ajax.php` with the action parameter set to `droip_post_apis` to manipulate the status of any post.

Mitigation and Recommendations

To mitigate the CVE-2025-5835 vulnerability, users should promptly apply the vendor patch once it’s available. Meanwhile, as a temporary mitigation, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and block suspicious activities can be beneficial. It is also recommended to restrict users’ permissions and capabilities as much as possible to minimize the potential impact in case of a successful exploit.

Overview

A high-severity vulnerability has been identified in the Droip plugin for WordPress. This vulnerability, tagged as CVE-2025-5831, allows authenticated attackers to upload arbitrary files due to missing file type validation. Any user with Subscriber-level access or above to a WordPress site running the Droip plugin is potentially an attacker. This vulnerability exposes the affected site’s server to remote code execution, potentially leading to a system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-5831
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: Low (Subscriber-level access)
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Droip Plugin for WordPress | Up to and including 2.2.0

How the Exploit Works

The vulnerability lies in the make_google_font_offline() function of the Droip plugin for WordPress. This function lacks proper file type validation, thus allowing an authenticated attacker to upload arbitrary files on the server of the affected site. An attacker, with at least Subscriber-level access, can exploit this lack of validation to upload malicious files, potentially leading to remote code execution.

Conceptual Example Code

The conceptual example below illustrates how an attacker might exploit this vulnerability using a malicious payload:

POST /wp-content/plugins/droip/upload.php HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="file"; filename="exploit.php"
Content-Type: application/x-php
<?php echo shell_exec($_GET['cmd']); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gW--

In this example, the attacker attempts to upload a PHP script file with a shell execution command. If successful, the attacker can execute arbitrary code on the server.

Recommended Mitigation

The immediate recommended mitigation is to apply the vendor-supplied patch. If the patch is not available or applying it is not immediately feasible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. However, these measures are not a permanent solution and the patch should be applied as soon as possible to fix the vulnerability permanently.

Overview

CVE-2025-8131 is an identified vulnerability found in Tenda AC20 16.03.08.05. This issue has been categorized as critical due to its potential to compromise systems or lead to data leakage. The vulnerability affects an unidentified functionality of the file /goform/SetStaticRouteCfg, where the manipulation of the argument list triggers a stack-based buffer overflow. This kind of attack can be remotely executed and the exploit details are already disclosed to the public, making it a critical concern for users of the affected device.
The severity of this vulnerability underscores the need for immediate action by Tenda AC20 users. If exploited successfully, cybercriminals can compromise systems, gain unauthorized access to sensitive data, and disrupt operations. Therefore, it’s vital to understand the nature of this vulnerability, its impact, and how to mitigate it.

Vulnerability Summary

CVE ID: CVE-2025-8131
Severity: Critical (8.8 CVSS Score)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda AC20 | 16.03.08.05

How the Exploit Works

The exploit takes advantage of an unknown function within the /goform/SetStaticRouteCfg file. By manipulating the argument list, an attacker can trigger a stack-based buffer overflow. This overflow can then overwrite critical memory areas, potentially allowing the attacker to execute arbitrary code on the system.

Conceptual Example Code

Below is a conceptual example of a malicious HTTP request that could potentially exploit this vulnerability:

POST /goform/SetStaticRouteCfg HTTP/1.1
Host: target.example.com
Content-Type: application/json
{
"argument_list": "A"*5000
}

In this example, a POST request is made to the vulnerable endpoint with an overly large “argument_list. This could trigger the buffer overflow, potentially leading to unauthorized code execution or system compromise.

Mitigation Guidance

Users are recommended to immediately apply the vendor patch once it is available. In the interim, deploying a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation against potential attacks exploiting this vulnerability. Regularly updating and patching systems can significantly reduce the risk of such vulnerabilities being exploited.

Overview

The CVE-2015-10144 vulnerability pertains to the popular WordPress plugin, Responsive Thumbnail Slider. This plugin, widely used for enhancing website aesthetics, has a significant flaw. It allows for unauthorized file uploads due to an absence of file type sanitization, specifically in versions up to 1.0.1.
The implications of this vulnerability are serious and far-reaching. Any authenticated attacker with subscriber-level access or above can potentially exploit this flaw. This can result in system compromise or data leakage, leading to serious repercussions for the affected organization.

Vulnerability Summary

CVE ID: CVE-2015-10144
Severity: High – CVSS 8.8
Attack Vector: Network
Privileges Required: Low (Subscriber-level access or above)
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Responsive Thumbnail Slider Plugin for WordPress | Up to 1.0.1

How the Exploit Works

An authenticated attacker can exploit this vulnerability by uploading a malicious file with a double extension via the image uploader feature. The plugin does not perform proper file type sanitization, allowing the attacker to execute arbitrary code on the server. The executed code can then lead to unauthorized access to sensitive data or even full control over the affected system.

Conceptual Example Code

Below is a conceptual example of a malicious HTTP request that an attacker might use to exploit this vulnerability:

POST /wp-content/plugins/responsive-thumbnail-slider/upload.php HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="imagefile"; filename="malicious.php.jpg"
Content-Type: image/jpeg
{ "malicious_payload": "..." }
------WebKitFormBoundary7MA4YWxkTrZu0gW--

In this example, an attacker uploads a file with a double extension, bypassing the plugin’s file type checks and executing the malicious payload on the server.
All WordPress websites using the affected versions of the Responsive Thumbnail Slider plugin should immediately apply the vendor patch to rectify this issue. Alternatively, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation.

Overview

This blog post serves to inform and educate about the critical vulnerability identified as CVE-2025-25214 in WWBN AVideo 14.4 and the dev master commit 8a8954ff. This vulnerability stems from a race condition in the aVideoEncoder.json.php unzip functionality, which can be exploited to execute arbitrary code. As a cybersecurity threat, this vulnerability poses a significant risk to organizations that utilize WWBN AVideo 14.4, potentially leading to system compromise or data leakage.
This vulnerability matters because of the potential for malicious actors to take control of systems, access sensitive information, or disrupt services. Given the severity of this vulnerability, it is crucial for organizations to promptly apply available patches or implement temporary mitigation measures to minimize the risk of exploitation.

Vulnerability Summary

CVE ID: CVE-2025-25214
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

WWBN AVideo | 14.4 and dev master commit 8a8954ff

How the Exploit Works

The exploit takes advantage of a race condition in the aVideoEncoder.json.php unzip functionality. A race condition is a state where the system’s behavior is dependent on the sequence or timing of events that are uncontrollable by the system. In this case, a series of specially crafted HTTP requests can exploit this race condition to execute arbitrary code.
The attacker sends several HTTP requests to the vulnerable endpoint. The timing and sequence of these requests trigger the race condition, allowing the attacker to manipulate the process and execute malicious code.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. This sample HTTP request is designed to trigger the race condition and execute arbitrary code:

POST /AVideoEncoder.json.php/unzip HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "arbitrary_code_here" }

Note: This example is purely conceptual and may not represent an actual exploit. It is for educational purposes only and should not be used for malicious activities.

Mitigation Guidance

The best way to mitigate this vulnerability is to apply the vendor patch as soon as it becomes available. In the meantime, utilizing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure, helping to monitor and block potential malicious traffic aiming to exploit the vulnerability.

Overview

CVE-2025-7695 is a serious cybersecurity vulnerability affecting the Dataverse Integration plugin for WordPress, with versions 2.77 to 2.81 being susceptible. This vulnerability involves privilege escalation due to missing authorization checks, which can lead to potential system compromise or data leakage. As WordPress powers nearly 40% of all websites on the internet, the implications of such a vulnerability are wide-ranging and significant. It is crucial for users and administrators to understand the risk and take immediate action to mitigate the potential impact.

Vulnerability Summary

CVE ID: CVE-2025-7695
Severity: High – CVSS Score 8.8
Attack Vector: Network
Privileges Required: Low (Subscriber-level Access)
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Dataverse Integration Plugin for WordPress | 2.77 – 2.81

How the Exploit Works

The vulnerability lies in the reset_password_link REST endpoint of the Dataverse Integration plugin for WordPress. The endpoint’s handler accepts client-supplied id, email, or login, looks up that user, and calls the get_password_reset_key() function without any conditional checks. Since the endpoint only verifies that the caller is authenticated and not whether they have the right to edit or own the target account, any authenticated attacker with Subscriber-level access can potentially obtain a password reset link for an administrator. This could lead to hijacking of the administrator account.

Conceptual Example Code

Here’s a conceptual example of a maliciously crafted HTTP request that exploits this vulnerability:

POST /wp-json/dataverse/v1/reset_password_link HTTP/1.1
Host: targetsite.com
Content-Type: application/json
Authorization: Bearer <attacker's JWT>
{
"id": 1
}

In this example, an attacker would replace `` with their own JSON Web Token. The `id` value of `1` is often the default ID for the first created user in WordPress, which is typically an administrator account. This request attempts to reset the password for the user with ID `1`, allowing the attacker to potentially hijack this account.

Mitigation and Fixes

The most straightforward way to mitigate this vulnerability is to apply the vendor-supplied patch. Keeping the plugin updated can prevent this and other potential vulnerabilities. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Additionally, restricting access to the vulnerable endpoint to trusted networks and users can provide an extra layer of protection.