Author: Ameeba

CVE-2025-52817: Authorization Bypass in ZealousWeb Abandoned Contact Form 7 Leads to Potential System Compromise
Overview

In this post, we’ll delve into the details of a particularly severe vulnerability, CVE-2025-52817, that resides in the Abandoned Contact Form 7, a product of ZealousWeb. This vulnerability is of significant concern because it allows malicious actors to exploit incorrectly configured access control security levels, leading to potential system compromise and data leakage. Given the widespread use of contact forms on websites for user interaction, this vulnerability affects a broad user base, making it an urgent issue to address.

Vulnerability Summary

CVE ID: CVE-2025-52817
Severity: High (8.2 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and data leakage

Affected Products

Product | Affected Versions

ZealousWeb Abandoned Contact Form 7 | All versions up to 2.0

How the Exploit Works

Due to missing authorization checks in the Abandoned Contact Form 7, an attacker can exploit the system by sending specially crafted requests to the system. As the system lacks sufficient access control measures, these requests are processed, allowing the attacker to bypass the system’s defenses. This, in turn, enables the attacker to gain unauthorized access to sensitive system resources, which can result in system compromise and potential data leakage.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. This is a sample HTTP request that a malicious actor could use:
```
POST /abandoned_contact_form_7_endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "Exploit command/Code here" }
```
Mitigation and Prevention

The best way to protect your system from this vulnerability is to apply the vendor patch as soon as it becomes available. If the patch is not yet available or cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation. These tools can help identify and block the malformed requests that exploit this vulnerability. Regularly updating security protocols and performing rigorous authorization checks can also help prevent similar vulnerabilities in the future.
In conclusion, while CVE-2025-52817 is a severe threat, by staying informed about the latest vulnerabilities and applying the appropriate mitigations, system administrators can effectively safeguard their systems against potential breaches.
July 5, 2025
CVE-2025-53093: Critical Security Vulnerability in TabberNeue MediaWiki Extension
Overview

In the ever-evolving landscape of cybersecurity, vulnerabilities present in various software tools can leave systems open to potential attacks. One such vulnerability has been identified in the TabberNeue MediaWiki extension, a tool widely used to create tabs in wiki interfaces. This vulnerability, designated as CVE-2025-53093, can allow arbitrary HTML to be inserted into the DOM, leading to potential system compromise or data leakage. Given the severity of the issue, it is critical for users and system administrators to understand the implications of this vulnerability and take immediate steps to mitigate the risk.

Vulnerability Summary

CVE ID: CVE-2025-53093
Severity: Critical (CVSS 8.6)
Attack Vector: Web
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

TabberNeue MediaWiki extension | 3.0.0 to 3.1.0

How the Exploit Works

The exploit works by taking advantage of a security flaw in the TabberNeue MediaWiki extension. Specifically, any user can insert arbitrary HTML into the Document Object Model (DOM) by injecting a payload into any permitted attribute of the “ tag. This allows an attacker to potentially execute malicious scripts or commands, gain unauthorized access to sensitive data, or even compromise the system entirely.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. An attacker might craft a malicious payload and insert it into a permitted attribute of the `` tag, as shown below:
```
<tabber attr="..."><script>malicious code here</script></tabber>
```
This payload, when processed by the TabberNeue MediaWiki extension, would result in the arbitrary HTML being inserted into the DOM, potentially executing the malicious script and leading to a successful exploit.

Mitigation and Guidance

To mitigate the risk of this vulnerability, users and system administrators should immediately apply the vendor patch released with version 3.1.1 of the TabberNeue MediaWiki extension. In cases where immediate patching is not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. However, it is strongly recommended to apply the vendor patch as soon as feasible to ensure the long-term security of the system.
July 5, 2025
CVE-2025-52726: Incorrect Privilege Assignment Vulnerability in pebas CouponXxL Custom Post Types
Overview

This blog post will delve into the details of the security vulnerability identified as CVE-2025-52726. This vulnerability results from an incorrect privilege assignment within the pebas CouponXxL Custom Post Types, which in turn allows for privilege escalation. The individuals most affected by this vulnerability are users of the CouponXxL Custom Post Types from version n/a through 3.0. The existence of this vulnerability can potentially lead to severe consequences such as system compromise or data leakage, hence the need for awareness and a swift response.

Vulnerability Summary

CVE ID: CVE-2025-52726
Severity: High (8.6 CVSS Severity Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

pebas CouponXxL Custom Post Types| n/a through 3.0

How the Exploit Works

The CVE-2025-52726 vulnerability arises from an incorrect privilege assignment within the pebas CouponXxL Custom Post Types. Essentially, the software does not properly restrict access to certain functionalities, hence a low privileged user can gain elevated privileges. The attacker can exploit this lapse to perform actions with escalated privileges, which could potentially lead to system compromise or data leakage.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. In this scenario, the attacker sends a specially crafted HTTP request to the target system, which results in privilege escalation.
```
POST /pebas_couponxxl/escalate_privilege HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "user_status": "admin" }
```
In this example, the attacker manipulates the “user_status” field to “admin”, thereby granting themselves admin privileges.

Mitigation Guidance

To mitigate this vulnerability, users are advised to apply the vendor patch as soon as possible. In the interim, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These systems can potentially detect and block attempts to exploit this vulnerability, hence providing a temporary layer of security while the patch is being applied.
July 5, 2025
CVE-2025-6887: Critical Buffer Overflow Vulnerability in Tenda AC5 15.03.06.47
Overview

A critical vulnerability, designated as CVE-2025-6887, has been discovered in Tenda AC5 version 15.03.06.47, a popular networking device. This vulnerability emanates from an unknown functionality of the file /goform/SetSysTimeCfg and can be exploited remotely, posing a severe threat to system security and data integrity.
The vulnerability has a CVSS severity score of 8.8, indicating its potential for severe damage. Any successful exploit could compromise the system or lead to data leakage, which makes it a matter of urgent concern for all Tenda AC5 users and cybersecurity professionals.

Vulnerability Summary

CVE ID: CVE-2025-6887
Severity: Critical (CVSS: 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Tenda AC5 | 15.03.06.47

How the Exploit Works

The vulnerability resides in the /goform/SetSysTimeCfg file of the Tenda AC5 system. By manipulating the ‘time/timeZone’ argument, an attacker can trigger a stack-based buffer overflow. This overflow could then allow the attacker to execute arbitrary code or disrupt the normal functioning of the system, leading to a potential system compromise or data leakage.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited using a malicious HTTP POST request:
```
POST /goform/SetSysTimeCfg HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
time=malicious_payload&timeZone=malicious_payload
```
In the above request, ‘malicious_payload’ is a placeholder for the actual exploit code that would cause the buffer overflow.

Recommendations

Users of the affected Tenda AC5 version are strongly recommended to apply the vendor patch as soon as possible. If the patch cannot be applied immediately, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation measures, providing some protection against potential attacks exploiting this vulnerability.
July 5, 2025
CVE-2025-6886: Critical Buffer Overflow Vulnerability in Tenda AC5 15.03.06.47
Overview

A severe vulnerability, identified as CVE-2025-6886, has been recently discovered within the Tenda AC5 15.03.06.47. This vulnerability is classified as critical and poses significant risks to the affected systems. It impacts an unknown functionality of the file /goform/openSchedWifi. The issue lies within the manipulation of the argument schedStartTime/schedEndTime which leads to a stack-based buffer overflow. This vulnerability is of particular concern as it can be exploited remotely and has the potential to compromise systems or leak sensitive data.

Vulnerability Summary

CVE ID: CVE-2025-6886
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 AC5 | 15.03.06.47

How the Exploit Works

The vulnerability exploits an unknown functionality in the file /goform/openSchedWifi. By manipulating the argument schedStartTime/schedEndTime, an attacker can trigger a stack-based buffer overflow. This overflow can lead to unauthorized execution of arbitrary code, system crashes, or information disclosure. It is worth noting that this attack can be launched remotely, making it a significant threat.

Conceptual Example Code

The following is a conceptual example of a malicious HTTP request that could potentially exploit this vulnerability:
```
POST /goform/openSchedWifi HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "schedStartTime": "large_string", "schedEndTime":"large_string" }
```
In this example, the ‘large_string’ is a long, crafted string designed to overflow the buffer and potentially execute arbitrary code or crash the system.

Mitigation and Recommendations

The best practice to mitigate this vulnerability is to apply the vendor’s patch as soon as it is available. For temporary mitigation, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help prevent potential attacks. Regular monitoring and updating of your systems are also crucial to keep your environment secure.
Remember, cybersecurity is not a one-time event but an ongoing process. Stay informed about the latest threats and vulnerabilities and take proactive measures to protect your systems and data.
July 5, 2025
CVE-2025-6882: Critical Buffer Overflow Vulnerability in D-Link DIR-513 1.0
Overview

A vulnerability, identified as CVE-2025-6882, has been found in D-Link’s DIR-513 1.0. This issue poses a serious threat due to its critical classification and the fact it can be exploited remotely. The vulnerability affects an unknown part of the file /goform/formSetWanPPTP and can lead to a buffer overflow, potentially compromising the system and leading to data leakage. This vulnerability is especially alarming because the exploit has been publicly disclosed and affects products that are no longer supported by the manufacturer.

Vulnerability Summary

CVE ID: CVE-2025-6882
Severity: Critical, CVSS score of 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

D-Link DIR-513 | 1.0

How the Exploit Works

The vulnerability in D-Link DIR-513 1.0 is due to inadequate handling of the ‘curTime’ argument in the /goform/formSetWanPPTP file. An attacker can manipulate this argument to cause a buffer overflow, an event where more data is put into a buffer than it can handle. This overflow can overwrite other data and potentially allow the execution of arbitrary code or cause a system crash.

Conceptual Example Code

Here is a conceptual example of how this vulnerability might be exploited. Note that the following is purely hypothetical and is not an actual exploit code:
```
POST /goform/formSetWanPPTP HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
curTime=100000000000000000000000000000000000000000000000000000000000000000000000000000...
```
In this example, an excessively long ‘curTime’ value is sent to the vulnerable endpoint, potentially causing a buffer overflow.

Remediation

As the affected products are no longer supported by the manufacturer, a vendor patch is not likely to be available. As a temporary mitigation, users can implement a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to identify and block attempts to exploit this vulnerability. Additionally, users are advised to replace unsupported products with updated, supported versions to ensure they benefit from the latest security updates.
July 5, 2025
CVE-2025-6881: Critical Buffer Overflow Vulnerability in D-Link DI-8100
Overview

The cybersecurity landscape is constantly evolving, and a recently discovered vulnerability, CVE-2025-6881, has underscored the importance of maintaining up-to-date security measures, particularly for users of D-Link DI-8100. This vulnerability has been rated as critical and can be exploited remotely, thus posing a severe threat to the security of the affected systems. The vulnerability lies in some unknown functionality of the file /pppoe_base.asp of the component jhttpd, and its exploitation could lead to system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-6881
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

D-Link DI-8100 | 16.07.21

How the Exploit Works

The vulnerability stems from a buffer overflow issue within the /pppoe_base.asp file of the jhttpd component in D-Link DI-8100. The manipulation of the argument mschap_en triggers the overflow, which subsequently allows the attacker to execute arbitrary code on the target system. This can be done remotely, without any need for user interaction or special privileges, giving the attacker unprecedented access to the system and its data.

Conceptual Example Code

Below you can find a conceptual example of how a potential exploit may look. This is in the form of a malicious HTTP request that manipulates the mschap_en argument:
```
GET /pppoe_base.asp?mschap_en=OVERFLOW_PAYLOAD HTTP/1.1
Host: vulnerable-dlink-di-8100.com
Accept: */*
```
Remember, this is purely conceptual and does not represent a real-world exploit. The actual payload would depend on the specific system architecture and the attacker’s objectives.

Recommendations for Mitigation

The most effective way to address this vulnerability is to apply the vendor’s patch. Users of D-Link DI-8100 should ensure that their systems are updated with the latest software version. Alternatively, as a temporary mitigation, users can implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor incoming traffic and block potential exploits. However, this should not replace the need for applying the patch as it only serves as an additional layer of security.
July 5, 2025
CVE-2025-46014: Privilege Escalation Vulnerability in Honor Device Co. PC Manager
Overview

A high-severity vulnerability has been identified in Honor Device Co., Ltd’s PC Manager v16.0.0.118, which may potentially compromise system security or lead to data leakage. This vulnerability, identified as CVE-2025-46014, is of particular concern to users and administrators of devices using the affected version of the Honor PC Manager software. If exploited, an attacker could escalate their privilege level, potentially gaining control over the system or accessing sensitive data.

Vulnerability Summary

CVE ID: CVE-2025-46014
Severity: High – CVSS score 8.8
Attack Vector: Local
Privileges Required: Low
User Interaction: None
Impact: System compromise or data leakage

Affected Products

Product | Affected Versions

Honor PC Manager | v16.0.0.118

How the Exploit Works

The vulnerability stems from multiple services in Honor PC Manager v16.0.0.118 connecting to the named pipe iMateBookAssistant using default or overly permissive security attributes. This improper management of system resources can be exploited by a threat actor to escalate their privileges. By exploiting these lax security controls, an attacker with low-level access could gain higher-level privileges, potentially leading to full control over the system or unauthorized access to sensitive data.

Conceptual Example Code

A conceptual example of how this vulnerability might be exploited could involve the use of a malicious script or command executed by an attacker who has gained low-level access to the system. This script or command could manipulate the lax security controls of the iMateBookAssistant named pipe to escalate privileges. While this example is purely conceptual and may not represent a real-world exploit, it serves to illustrate the potential severity of this vulnerability.
```
# A conceptual bash command demonstrating privilege escalation
echo 'echo "$(whoami): ALL=(ALL:ALL) ALL" | sudo tee -a /etc/sudoers'
```
This conceptual command attempts to add the current user to the system’s sudoers file, effectively granting them full administrative privileges. In a real-world scenario, the specific command or script used by an attacker would likely be more complex and tailored to the specific details of the vulnerability and the target system.

Mitigation Guidance

Users and administrators of affected systems are strongly advised to apply the vendor patch as soon as it becomes available. Until then, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation measure. Regularly updating software and maintaining a robust security posture can help prevent the exploitation of such vulnerabilities.
July 5, 2025
CVE-2025-6825: Critical Buffer Overflow Vulnerability in TOTOLINK A702R
Overview

A critical vulnerability, identified as CVE-2025-6825, has been discovered in TOTOLINK A702R routers up to version 4.0.0-B20230721.1521. This flaw lies within an unspecified functionality of the file /boafrm/formWlSiteSurvey, which is part of the HTTP POST Request Handler component. The vulnerability is of significant concern as it can be exploited remotely and may compromise the entire system or result in data leakage. Given the widespread use of TOTOLINK routers, the potential impact of this vulnerability is immense and demands immediate attention.

Vulnerability Summary

CVE ID: CVE-2025-6825
Severity: Critical, CVSS score 8.8
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Possible system compromise and data leakage

Affected Products

Product | Affected Versions

TOTOLINK A702R | Up to version 4.0.0-B20230721.1521

How the Exploit Works

The exploit targets the argument ‘submit-url’ in the HTTP POST Request Handler component of the router’s firmware. By sending a specially crafted request, an attacker can manipulate this argument to trigger a buffer overflow. This overflow can subsequently lead to system instability, unauthorized access, or even remote command execution. The potential for remote exploitation coupled with the absence of any user interaction makes this a particularly dangerous vulnerability.

Conceptual Example Code

An attacker might exploit this vulnerability with a malicious HTTP POST request similar to the following:
```
POST /boafrm/formWlSiteSurvey HTTP/1.1
Host: vulnerable.router.com
Content-Type: application/x-www-form-urlencoded
submit-url=<malicious_payload>
```
In this example, `` would be a string designed to overflow the buffer associated with the ‘submit-url’ argument, potentially leading to unexpected behavior or unauthorized access.

Remediation

As a mitigation measure, users are advised to apply the vendor’s patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation against potential attacks exploiting this vulnerability. However, it is critical to note that these are temporary solutions and cannot fully eliminate the risks associated with this vulnerability. Regular patching and system updates remain the most effective defense against such threats.
July 5, 2025
CVE-2025-53074: Critical Out-of-bounds Read Vulnerability in Samsung rLottie V0.2

Overview

Samsung’s open-source rLottie, a library that renders animations from Adobe After Effects, is now under critical scrutiny due to a newly discovered vulnerability, CVE-2025-53074. This vulnerability is a severe Out-of-bounds Read issue that enables buffer overflows, posing a significant threat to systems and data security. This issue is of particular concern to software developers and system administrators who use or support rLottie V0.2 in their software stack. The severity of the vulnerability warrants immediate attention due to the potential for system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-53074
Severity: Critical (CVSS: 9.1)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

Samsung rLottie | V0.2

How the Exploit Works

The vulnerability is an Out-of-bounds Read flaw that can be exploited by a remote attacker without any user interaction or special privileges. When manipulated, the vulnerability allows an attacker to overflow buffers within the rLottie library. This overflow can lead to unexpected behaviors, including system crashes, data corruption, and potentially unauthorized access to sensitive data or system control.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. Note that this is a simplified demonstration and actual exploits may vary in complexity.
“`c++
// potential attacker’s code
#include “rlottie.h”
int main() {
rlottie::Animation *animation;
char buffer[1024];
memset(buffer, 0, sizeof(buffer));
animation = rlottie::Animation::loadFromData(buffer, “malicious”, false);
return 0;
}
“`
In the code above, an attacker could craft a buffer that takes advantage of the vulnerability in rLottie, causing the buffer to overflow and subsequently leading to unintended system behavior.

Mitigation and Recommendations

Users of Samsung’s rLottie V0.2 are urged to apply the vendor’s patch as soon as it is available. In the meantime, temporary mitigation strategies such as using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) may provide some level of protection against potential exploits. It’s recommended to monitor system logs and network traffic for any suspicious activities.

July 5, 2025