Author: Ameeba

  • CVE-2025-9089: Stack-based Buffer Overflow Vulnerability in Tenda AC20

    Overview

    The CVE-2025-9089 vulnerability was discovered in the Tenda AC20 16.03.08.12 router. It affects the “sub_48E628” function of the file “/goform/SetIpMacBind” and is a stack-based buffer overflow vulnerability, which can lead to severe implications such as system compromise and data leakage. This vulnerability is of high concern as it allows remote attacks and the exploit has been publicly disclosed. Any organisation or individual using the Tenda AC20 router should take immediate measures to mitigate its impact.

    Vulnerability Summary

    CVE ID: CVE-2025-9089
    Severity: High (8.8 CVSS score)
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: System compromise, data leakage

    Affected Products

    Product | Affected Versions

    Tenda AC20 | 16.03.08.12

    How the Exploit Works

    The exploit works by manipulating the argument list of the “sub_48E628” function of the “/goform/SetIpMacBind” file. The manipulation results in a stack-based buffer overflow. The overflow occurs when more data is put into a buffer or holding area, than the buffer can handle. This excess data spills over into other buffers, corrupting or overwriting the valid data held in them. This could potentially lead to arbitrary code execution, thereby compromising the system and leading to data leakage.

    Conceptual Example Code

    Given the nature of the vulnerability, an attacker might craft a malicious request to the vulnerable endpoint. This could look something similar to the following:

    POST /goform/SetIpMacBind HTTP/1.1
    Host: target_router_ip
    Content-Type: application/x-www-form-urlencoded
    arg1=value1&arg2=value2&arg3=...&argN=overflowing_payload

    In this conceptual example, “overflowing_payload” represents a payload that is larger than what the argument buffer in “sub_48E628” can handle, resulting in a stack buffer overflow.
    It is important to note that the above is a conceptual representation and the actual exploit may vary based on the specifics of the vulnerability and the target environment. It is also necessary to emphasize the importance of addressing this vulnerability promptly, given its high severity and the potential for significant damage.

  • CVE-2025-9088: Critical Buffer Overflow Vulnerability in Tenda AC20 16.03.08.12

    Overview

    The digital ecosystem is constantly evolving, and with this evolution comes an ever-increasing need for tight security measures. A recent vulnerability, identified as CVE-2025-9088, has been found in the Tenda AC20 16.03.08.12. This vulnerability exposes users to a potential system compromise or data leakage. It affects the function save_virtualser_data of the file /goform/formSetVirtualSer, leading to a stack-based buffer overflow. This post seeks to delve into the details of this vulnerability, its potential impact, and ways to mitigate it.
    The importance of understanding this vulnerability cannot be overstated. As it affects a common networking device, the Tenda AC20, it has the potential to impact thousands, if not millions, of users worldwide. It poses a significant threat to the integrity and confidentiality of data and systems connected to these devices.

    Vulnerability Summary

    CVE ID: CVE-2025-9088
    Severity: Critical (8.8)
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: Potential system compromise or data leakage

    Affected Products

    Product | Affected Versions

    Tenda AC20 | 16.03.08.12

    How the Exploit Works

    The vulnerability stems from a lack of proper input validation in the function save_virtualser_data of the file /goform/formSetVirtualSer. An attacker can manipulate the argument list, causing a buffer overflow. A buffer overflow is a common coding error that can lead to arbitrary code execution. In this case, the attacker could execute malicious code remotely, 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 not actual exploit code, but rather a simplified representation to illustrate the attack.

    POST /goform/formSetVirtualSer HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    { "arguments": "A".repeat(1025) } // Exceeds the buffer size

    In this example, the attacker sends a POST request with an overly long argument list, causing a buffer overflow in the save_virtualser_data function.

    Mitigation

    Users are advised to apply the vendor patch as soon as it becomes available. In the interim, users can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These tools can help to detect and block exploit attempts, reducing the risk of a successful attack.

  • CVE-2025-9087: Stack-based Buffer Overflow Vulnerability in Tenda AC20 16.03.08.12

    Overview

    The cybersecurity landscape is littered with countless vulnerabilities and threats, but every so often, a particularly serious flaw garners increased attention and concern. Such is the case with the recently discovered CVE-2025-9087 vulnerability. This vulnerability exists in Tenda AC20 16.03.08.12, specifically affecting the function set_qosMib_list of the file /goform/SetNetControlList within the SetNetControlList Endpoint component. The exploitation of this vulnerability can lead to a stack-based buffer overflow, a type of security issue that can have severe consequences, including potential system compromise or data leakage.

    Vulnerability Summary

    CVE ID: CVE-2025-9087
    Severity: High, CVSS score of 8.8
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: The successful exploitation of this vulnerability could result in a system compromise or data leakage.

    Affected Products

    Product | Affected Versions

    Tenda AC20 | 16.03.08.12

    How the Exploit Works

    This vulnerability arises from a lack of proper input validation in the set_qosMib_list function of the file /goform/SetNetControlList. An attacker can exploit the vulnerability by manipulating the argument list of the function, triggering a stack-based buffer overflow. Given that the vulnerability can be exploited remotely and does not require any user interaction, it presents a significant risk. The exploit has been disclosed to the public, making systems running the affected version of Tenda AC20 more vulnerable to potential attacks.

    Conceptual Example Code

    Here is a conceptual example of how the vulnerability might be exploited. This is a hypothetical HTTP request that includes a malicious payload designed to trigger the buffer overflow:

    POST /goform/SetNetControlList HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    { "set_qosMib_list": "malicious_payload" }

    Please note that this is a conceptual example and should not be tried on a live system.
    To mitigate the risk associated with this vulnerability, vendors are advised to apply the available patches. In circumstances where patching is not immediately possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. However, these should not be considered long-term solutions, and patching should be prioritized as soon as feasible.

  • CVE-2025-8142: Local File Inclusion Vulnerability in Soledad WordPress Theme

    Overview

    The CVE-2025-8142 is a significant security vulnerability impacting all versions up to and including 8.6.7 of the Soledad theme for WordPress. This vulnerability, categorized as a Local File Inclusion (LFI), allows authenticated attackers with Contributor-level access and above to exploit a flaw in the ‘header_layout’ parameter and execute arbitrary .php files on the server. As a result, it poses severe risks to WordPress websites utilizing the Soledad theme, as it can potentially compromise system integrity, leak sensitive data, and even allow unauthorized code execution.

    Vulnerability Summary

    CVE ID: CVE-2025-8142
    Severity: High (8.8)
    Attack Vector: Network
    Privileges Required: Low (Contributor-level access)
    User Interaction: Required
    Impact: Potential system compromise or data leakage

    Affected Products

    Product | Affected Versions

    Soledad WordPress Theme | all versions up to and including 8.6.7

    How the Exploit Works

    The exploit works by the attacker injecting a malicious file path into the ‘header_layout’ parameter of the Soledad WordPress theme. As the theme does not sufficiently sanitize the input for this parameter, an authenticated attacker can insert a path to an arbitrary .php file that they have uploaded to the server. When the server processes the ‘header_layout’ parameter, it treats the malicious file path as a local one and includes the specified .php file leading to its execution.

    Conceptual Example Code

    Here’s a conceptual example of how the vulnerability might be exploited. This pseudocode represents a scenario in which the attacker uses an HTTP POST request to inject the path to their malicious .php file into the ‘header_layout’ parameter:

    POST /wp-admin/admin-ajax.php?action=soledad_ocdi_import_demo HTTP/1.1
    Host: target.example.com
    Content-Type: application/x-www-form-urlencoded
    header_layout=../../uploads/malicious.php

    In this example, `soledad_ocdi_import_demo` is the action that handles theme layout imports, `header_layout` is the vulnerable parameter, and `../../uploads/malicious.php` is the path to the malicious .php file uploaded by the attacker.

    Mitigation Guidance

    The recommended mitigation strategy is to apply the vendor patch as soon as possible. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These tools can be configured to block or alert on attempts to exploit the ‘header_layout’ parameter. However, these are only temporary solutions, and the definitive action against this vulnerability is to update the Soledad WordPress theme to a version that has fixed this issue.

  • CVE-2025-6080: Unauthorized Admin Account Creation in WPGYM – WordPress Gym Management System Plugin

    Overview

    Today, we will be looking at a critical vulnerability with the code ID CVE-2025-6080 that affects the WPGYM – WordPress Gym Management System plugin. This plugin is popular among fitness centers and gyms that use WordPress to manage their business operations. The vulnerability allows unauthorized admin account creation, which poses a serious risk to the security of these business systems. All versions up to and including 67.7.0 are affected. The high severity of this vulnerability, coupled with its broad impact, warrants immediate attention from any organization using the affected versions of this plugin.

    Vulnerability Summary

    CVE ID: CVE-2025-6080
    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

    WPGYM – WordPress Gym Management System Plugin | Up to and including 67.7.0

    How the Exploit Works

    The CVE-2025-6080 vulnerability arises from the lack of proper validation of a user’s capabilities prior to adding users in the WPGYM – WordPress Gym Management System plugin. This means that an attacker with subscriber-level access can create new users, including admin users, without authorization. Once an attacker has created an admin account, they can gain full control over the website, potentially leading to unauthorized system changes, data leakage, or a complete system compromise.

    Conceptual Example Code

    Below is a conceptual example of how the vulnerability might be exploited. In this example, an HTTP POST request is made to the user registration endpoint with a malicious payload that creates a new admin user.

    POST /wp-admin/user-new.php HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    {
    "user_login": "malicious_admin",
    "email": "attacker@example.com",
    "role": "administrator",
    "password": "insecure_password"
    }

    Upon successful execution of this request, an attacker would have created a new admin user (`malicious_admin`) with the password `insecure_password`. This new user would have full administrative privileges, allowing the attacker to make any changes they desire to the WordPress site.

    Mitigation

    The most effective way to mitigate this vulnerability is to apply the vendor patch once it becomes available. In the meantime, as a temporary mitigation, you can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and block any suspicious activities. Regularly review user accounts and privileges, and immediately remove any unauthorized or suspicious accounts.

  • CVE-2025-6079: Arbitrary File Upload Vulnerability in School Management System for WordPress Plugin

    Overview

    Cybersecurity threats are a growing concern in the digital realm, and this blog post will delve into one such vulnerability identified as CVE-2025-6079. This particular vulnerability affects the School Management System for WordPress plugin, used widely by educational institutions for administrative and organizational purposes. It is critical because it lacks file type validation in the homework.php file, thereby allowing authenticated attackers to upload arbitrary files. This could potentially lead to a system compromise or data leakage, resulting in severe consequences for the affected institutions.

    Vulnerability Summary

    CVE ID: CVE-2025-6079
    Severity: High (8.8 CVSS Score)
    Attack Vector: Network
    Privileges Required: Low (Student-level access)
    User Interaction: Required
    Impact: Potential system compromise or data leakage

    Affected Products

    Product | Affected Versions

    School Management System for WordPress Plugin | Up to and including 93.2.0

    How the Exploit Works

    The exploit takes advantage of the lack of file type validation in the homework.php file of the School Management System for WordPress plugin. This allows an authenticated user with student-level access to upload arbitrary files to the server. The files can contain malicious code, which, when executed, could compromise the entire system. The attacker could potentially gain unauthorized access to sensitive information or exert control over the system.

    Conceptual Example Code

    Here is a conceptual example of how the vulnerability might be exploited using an HTTP POST request to upload a malicious file:

    POST /wp-content/plugins/school-management/homework.php HTTP/1.1
    Host: target.school.edu
    Content-Type: multipart/form-data; boundary=----WebKitFormBoundary
    ------WebKitFormBoundary
    Content-Disposition: form-data; name="fileToUpload"; filename="malicious.php"
    Content-Type: application/x-php
    <?php
    // malicious code here
    ?>
    ------WebKitFormBoundary--

    In the above example, ‘malicious.php’ is a PHP file containing malicious code. Once uploaded and executed, it could potentially compromise the system.

    Mitigation Guidance

    To mitigate this vulnerability, it is recommended to apply the vendor patch as soon as it is available. Until then, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. Regular monitoring and updating of systems is essential in maintaining cybersecurity.

  • CVE-2025-3671: Critical Local File Inclusion Vulnerability in WPGYM – WordPress Gym Management System Plugin

    Overview

    The WPGYM – WordPress Gym Management System plugin is a widely-used plugin that provides gym management functionalities on WordPress. However, a critical vulnerability has been discovered and assigned identifier CVE-2025-3671. This vulnerability, if exploited, allows an attacker to include and execute arbitrary files on the server. It has serious implications for any WordPress site utilizing this plugin, as it can lead to potential system compromise or data leakage. This blog post will delve into the specifics of this vulnerability, the affected products, how the exploit works, and the recommended mitigation strategies.

    Vulnerability Summary

    CVE ID: CVE-2025-3671
    Severity: Critical, CVSS score of 8.8
    Attack Vector: Local File Inclusion via ‘page’ parameter in WPGYM Plugin
    Privileges Required: Subscriber-level Access
    User Interaction: Required
    Impact: Potential system compromise or data leakage, privilege escalation

    Affected Products

    Product | Affected Versions

    WPGYM – WordPress Gym Management System Plugin | Up to and including version 67.7.0

    How the Exploit Works

    The vulnerability exists due to the plugin’s mishandling of the ‘page’ parameter. An authenticated attacker, with at least Subscriber-level access, can manipulate this parameter to include and execute arbitrary PHP files on the server. This can bypass access controls, expose sensitive data, or even execute code if “safe” file types like images are uploaded and included. The attacker can chain this exploit to include various dashboard view files in the plugin. Notably, a researcher has reported that one such file can be exploited to change the password of Super Administrator accounts in Multisite environments, enabling privilege escalation.

    Conceptual Example Code

    This conceptual example demonstrates how the exploit could be performed. Please note that this is for illustrative purposes only and should not be used maliciously.

    POST /wp-content/plugins/wpgym/?page=../../../../wp-config.php HTTP/1.1
    Host: targetsite.com
    Content-Type: application/x-www-form-urlencoded
    Cookie: [Insert Authenticated Session Cookie Here]
    action=update&new_password=malicious_password

    In the example above, the attacker attempts to include the `wp-config.php` file via the ‘page’ parameter. They then try to execute the ‘update’ action to change the password to a value of their choosing.

    Mitigation Guidance

    Given the severity of this vulnerability, it’s crucial to apply remedial measures promptly. Users should immediately apply the vendor patch once it becomes available. In the meantime, employing a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation. Regularly monitoring system logs for any unusual activity can also help detect potential exploits.

  • CVE-2025-49895: Critical CSRF Vulnerability in iThemes ServerBuddy Plugin

    Overview

    The cybersecurity landscape is continuously evolving, spawning new threats and vulnerabilities daily. Among these threats, one has recently caught the attention of the cybersecurity community due to its critical nature. The vulnerability, identified as CVE-2025-49895, presents a significant risk to websites running the iThemes ServerBuddy plugin by PluginBuddy.Com. This Cross-Site Request Forgery (CSRF) vulnerability allows for Object Injection, leading to potential system compromise or data leakage. Given the popularity and widespread usage of this plugin, understanding the implications of this vulnerability is of the utmost importance.

    Vulnerability Summary

    CVE ID: CVE-2025-49895
    Severity: CRITICAL, CVSS score 8.8
    Attack Vector: Network
    Privileges Required: None
    User Interaction: Required
    Impact: Potential system compromise or data leakage

    Affected Products

    Product | Affected Versions

    ServerBuddy by PluginBuddy.Com | Up to 1.0.5

    How the Exploit Works

    The vulnerability arises from the improper handling of certain user inputs in the iThemes ServerBuddy plugin. A threat actor can create a specially crafted request, which, when executed by an authenticated user, can trigger the injection of malicious objects into the server. This object injection could allow the attacker to run arbitrary code or commands on the server, potentially leading to complete system compromise or data leakage.

    Conceptual Example Code

    A conceptual example of how this vulnerability might be exploited could look something like this:

    POST /serverbuddy_endpoint HTTP/1.1
    Host: vulnerablewebsite.com
    Content-Type: application/json
    Cookie: auth=<user's authentication cookie>
    {
    "malicious_object": "serialized_object_here"
    }

    In this example, the attacker sends a POST request to a vulnerable endpoint of the ServerBuddy plugin. The “malicious_object” in the request body is a serialized object, which is injected into the server when the request is processed.

    Mitigation and Prevention

    The best mitigation against this vulnerability is to apply the vendor-supplied patch. Owners of affected systems should update their ServerBuddy plugin to the latest version as soon as possible. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation method, potentially preventing the exploitation of this vulnerability. However, these should not be considered long-term solutions, as they may not be able to completely prevent all possible exploit attempts.

  • CVE-2025-8675: Server-Side Request Forgery (SSRF) vulnerability in Drupal AI SEO Link Advisor

    Overview

    One of the most recent vulnerabilities to have surfaced in the realm of cybersecurity is CVE-2025-8675, an SSRF vulnerability that affects the Drupal AI SEO Link Advisor. With a CVSS severity score of 8.8 (out of a maximum of 10), this vulnerability is considered high-risk. It is primarily due to its potential to compromise systems and leak sensitive data. As Drupal is an extensively used content management system, this vulnerability can have a significant impact on websites and web applications worldwide.

    Vulnerability Summary

    CVE ID: CVE-2025-8675
    Severity: High (CVSS 8.8)
    Attack Vector: Network
    Privileges Required: None
    User Interaction: None
    Impact: System compromise and potential data leakage

    Affected Products

    Product | Affected Versions

    Drupal AI SEO Link Advisor | 0.0.0 before 1.0.6

    How the Exploit Works

    The Server-Side Request Forgery (SSRF) vulnerability in the Drupal AI SEO Link Advisor allows an attacker to make HTTP requests from the vulnerable server to another server, potentially within the same network. This gives them the ability to bypass network access controls and perform actions as if they were the server itself. This could lead to unauthorized actions such as data exfiltration, remote code execution, or even complete system compromise.

    Conceptual Example Code

    The following is a conceptual example of how this vulnerability might be exploited:

    GET /?url=http://internal.victim.com HTTP/1.1
    Host: vulnerable.example.com

    In this example, the attacker sends a crafted GET request to the vulnerable server (`vulnerable.example.com`). The `url` parameter in the request specifies an internal resource (`internal.victim.com`) that the attacker wants the server to fetch. If the server is vulnerable to SSRF, it will fetch the resource and respond with its contents, potentially revealing sensitive internal information.

    Mitigation Guidance

    The most effective way to mitigate this vulnerability is to apply the vendor-supplied patch. For Drupal AI SEO Link Advisor, this means updating to version 1.0.6 or later. If a patch cannot be applied immediately, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to block or alert on potential SSRF attempts. However, these are temporary measures and should not replace patching the software as soon as possible.

  • CVE-2025-9046: Critical Stack-Based Buffer Overflow Vulnerability in Tenda AC20

    Overview

    The Common Vulnerabilities and Exposures (CVE) system has identified a high-risk vulnerability, dubbed CVE-2025-9046, within Tenda AC20 version 16.03.08.12. This vulnerability exposes the home routers to risks of system compromise and data leakage. It primarily affects the function sub_46A2AC of the file /goform/setMacFilterCfg. Cybersecurity professionals and home users who utilize Tenda AC20 routers should take immediate notice of this issue due to the severity of the potential consequences. The exploit is publicly disclosed and could be leveraged by malicious actors.

    Vulnerability Summary

    CVE ID: CVE-2025-9046
    Severity: High (8.8 CVSS Score)
    Attack Vector: Remote
    Privileges Required: None
    User Interaction: None
    Impact: System compromise and data leakage

    Affected Products

    Product | Affected Versions

    Tenda AC20 | 16.03.08.12

    How the Exploit Works

    The vulnerability lies in the manipulation of the ‘deviceList’ argument within the function sub_46A2AC of the file /goform/setMacFilterCfg. By sending specially crafted data, an attacker can trigger a stack-based buffer overflow. This overflow condition allows a remote attacker to overwrite the intended buffer boundaries, causing arbitrary code execution or altering the intended control flow of the program, thus potentially leading to system compromise or data leakage.

    Conceptual Example Code

    The following is a conceptual example of a malicious HTTP request that could be used to exploit the vulnerability:

    POST /goform/setMacFilterCfg HTTP/1.1
    Host: target.example.com
    Content-Type: application/json
    {
    "deviceList": "AAAAA....[Long string of A's to cause buffer overflow]....AAAAA"
    }

    In this example, a long string of ‘A’s is used in the ‘deviceList’ value to cause the buffer overflow. This is a common technique in buffer overflow exploits, although actual attack payloads would likely contain machine code to be executed on the victim’s system.
    Please note that this is a simplified example and real-world exploitation might require a more sophisticated approach.

    Mitigation

    Users are strongly advised to apply the vendor patch as soon as it becomes available. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could be used to mitigate this vulnerability. These systems can help detect and block malicious activity, providing temporary relief from the threat. Properly configured, they can prevent the exploit from reaching the vulnerable system, thus reducing the risk of a successful attack.

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