Author: Ameeba

CVE-2025-55420: Reflected Cross Site Scripting (XSS) Vulnerability in FoxCMS v1.2.6
Overview

The Common Vulnerabilities and Exposures (CVE) system has recently identified a critical cybersecurity vulnerability, CVE-2025-55420, that seriously threatens the security of websites running FoxCMS v1.2.6. This blog post delves into the specifics of this vulnerability, its potential impact, and what measures can be taken to mitigate it. Being a reflected Cross Site Scripting (XSS) vulnerability, it exposes users and networks to potential system compromise and data leakage, emphasizing the importance of immediate remedial action.

Vulnerability Summary

CVE ID: CVE-2025-55420
Severity: High (8.8 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

FoxCMS | v1.2.6

How the Exploit Works

The vulnerability lies within the /index.php of FoxCMS v1.2.6. A crafted script sent via a GET request to this index page is reflected unsanitized into the HTML response. This means that the arbitrary JavaScript code embedded in the GET request is executed when a logged-in user submits the malicious input. Essentially, this vulnerability allows an attacker to inject malicious scripts into otherwise benign and trusted websites.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited. An attacker sends a malicious script embedded in a GET request to the /index.php page:
```
GET /index.php?payload=<script>malicious_code_here</script> HTTP/1.1
Host: vulnerable-website.com
```
When a logged-in user loads the affected page, the malicious script is executed in their browser. This could lead to various outcomes, such as stealing session cookies, performing actions on behalf of the user, or even delivering a payload for further exploitation.

Mitigation and Prevention

To mitigate this vulnerability, it is highly recommended that users apply the vendor patch as soon as it is available. As a temporary measure, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to identify and block attempts to exploit this vulnerability. Regularly updating and patching software, as well as implementing robust security measures such as WAF and IDS, can go a long way in preventing such vulnerabilities from being exploited.
August 31, 2025
CVE-2025-9303: Critical Buffer Overflow Vulnerability in TOTOLINK A720R Router
Overview

A critical security vulnerability has been identified in the TOTOLINK A720R 4.1.5cu.630_B20250509 router. This vulnerability, indexed as CVE-2025-9303, can potentially allow an attacker to remotely exploit the system, leading to a potential system compromise or data leakage. Given the ubiquity of TOTOLINK routers in home and small business environments, the impact of this vulnerability is widespread and poses a significant risk to information security.

Vulnerability Summary

CVE ID: CVE-2025-9303
Severity: Critical (8.8 CVSS Severity Score)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

TOTOLINK A720R Router | 4.1.5cu.630_B20250509

How the Exploit Works

This vulnerability stems from a flaw in the function setParentalRules of the file /cgi-bin/cstecgi.cgi. By manipulating the argument ‘desc’, an attacker can cause a buffer overflow condition. This buffer overflow can allow the execution of arbitrary code, meaning an attacker could potentially gain unauthorized access to the system and data stored on the device.

Conceptual Example Code

Here is a conceptual example of how an attacker might exploit this vulnerability in a HTTP request by sending a large amount of data as the ‘desc’ parameter:
```
POST /cgi-bin/cstecgi.cgi HTTP/1.1
Host: target_router_ip
Content-Type: application/x-www-form-urlencoded
setParentalRules&desc=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
```
In this example, the ‘desc’ parameter is filled with a large number of ‘A’ characters, causing a buffer overflow. The overflow data could contain malicious code that the router inadvertently executes.

Recommendations for Mitigation

Users are strongly urged to apply the vendor-provided patch as soon as possible. Until the patch can be applied, users may use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These systems can detect and block attempts to exploit this vulnerability. However, they are not a long-term solution and patching the device should be the priority.
August 31, 2025
CVE-2025-55370: Unauthorized Access Control Vulnerability in jshERP v3.5
Overview

This post aims to unveil and discuss the details surrounding a critical vulnerability, CVE-2025-55370. This security flaw resides in jshERP v3.5, a popular enterprise resource planning software. Specifically, it affects the component controllerResourceController.java and exposes sensitive data by allowing unauthorized attackers to manipulate the ID values.
Given the widespread use of jshERP in various industries, this vulnerability poses a significant risk. If exploited, it can lead to system compromise or data leakage, which can have catastrophic implications for affected organizations, especially those handling sensitive or proprietary information.

Vulnerability Summary

CVE ID: CVE-2025-55370
Severity: High, CVSS Score: 8.8
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise or data leakage

Affected Products

Product | Affected Versions

jshERP | v3.5

How the Exploit Works

The vulnerability lies in the incorrect access control mechanism implemented in the controllerResourceController.java component of jshERP v3.5. An unauthorized attacker can manipulate the ID value, which in turn can provide them with all corresponding ID data. This data can then be used to exploit the system further, leading to potential system compromise or data leakage.

Conceptual Example Code

Below is a hypothetical example of how the vulnerability might be exploited using a simple HTTP request:
```
GET /controller/ResourceController.java?id=123456 HTTP/1.1
Host: target.example.com
```
In this example, an attacker modifies the ID value (`id=123456`) to another value, which could potentially retrieve data associated with that ID.

Recommended Mitigation Steps

The recommended mitigation for this vulnerability is to apply the vendor-supplied patch. If however, the patch is not immediately available or applicable, using Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation. These security measures can help limit unauthorized access and monitor network traffic for signs of this exploit.
August 31, 2025
CVE-2025-55368: Unauthorized Supplier Status Modification in jshERP v3.5
Overview

In the realm of cybersecurity, the discovery of new vulnerabilities is a routine occurrence. However, when such vulnerabilities have the potential to compromise entire systems or leak sensitive data, they become a matter of paramount concern. CVE-2025-55368 is one such vulnerability, affecting jshERP v3.5, a popular enterprise resource planning software. This vulnerability allows unauthorized attackers the ability to arbitrarily modify supplier status under any account, thus presenting a significant risk to businesses relying on jshERP for their operations.

Vulnerability Summary

CVE ID: CVE-2025-55368
Severity: High (CVSS 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

jshERP | v3.5

How the Exploit Works

The exploit takes advantage of the incorrect access control in the component controllerRoleController.java of jshERP v3.5. This allows unauthorized attackers to modify supplier status under any account without proper authorization. The attacker could send a specifically crafted HTTP request to manipulate the supplier status. A successful attack could lead to a potential system compromise or data leakage, depending on the attacker’s intent and capability.

Conceptual Example Code

The following is a
conceptual
example of how the vulnerability might be exploited. This is a simplified HTTP request illustrating the potential attack:
```
POST /jshERP/RoleController/modifySupplierStatus HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "supplierId": "1234", "newStatus": "Inactive" }
```
In this example, the attacker is attempting to modify the status of a supplier with the ID “1234” to “Inactive”. This could disrupt the victim’s business operations or allow for further exploitations based on the changed supplier status.

Mitigation Guidance

The most effective method to mitigate this vulnerability is to apply the patch provided by the vendor. This patch rectifies the incorrect access control, preventing unauthorized modification of supplier status. If the patch cannot be applied immediately, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation, alerting administrators to potential attacks and possibly preventing successful exploitation. However, these measures are only temporary and do not address the root cause of the vulnerability. Therefore, applying the vendor’s patch should be prioritized as soon as possible.
August 31, 2025
CVE-2025-9299: Remote Stack-Based Buffer Overflow Vulnerability in Tenda M3 1.0.0.12
Overview

This blog post focuses on the CVE-2025-9299 vulnerability discovered in Tenda M3 version 1.0.0.12. This vulnerability is of particular concern due to its potential to be exploited remotely, leading to a stack-based buffer overflow. This is a significant security concern as it may result in a system compromise or data leakage. The potential impact is severe, and hence it is of utmost importance that network administrators and cybersecurity professionals stay updated and take necessary protective measures.

Vulnerability Summary

CVE ID: CVE-2025-9299
Severity: High – 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 M3 | 1.0.0.12

How the Exploit Works

The primary cause of this vulnerability is a flaw in the function formGetMasterPassengerAnalyseData of the file /goform/getMasterPassengerAnalyseData. The improper handling of the ‘Time’ argument leads to a stack-based buffer overflow. This overflow can be exploited by an attacker to execute arbitrary code or potentially gain unauthorized access to the system. Since this exploit can be initiated remotely, it elevates the risk and potential impact of the vulnerability.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. This example uses an HTTP POST request to the vulnerable endpoint with a malicious payload designed to trigger the buffer overflow:
```
POST /goform/getMasterPassengerAnalyseData HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "Time": "[Insert malicious payload here causing buffer overflow]" }
```
Mitigation and Prevention

The best way to protect your systems from this vulnerability is to apply the vendor-provided patch as soon as possible. If this patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These tools can help detect and block malicious attempts to exploit this vulnerability. Additionally, regular patch management and system audits are recommended to ensure the continued security of your systems.
August 31, 2025
CVE-2025-9298: Buffer Overflow Vulnerability in Tenda M3 1.0.0.12 Resulting in Potential System Compromise
Overview

The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant security flaw, designated as CVE-2025-9298, affecting Tenda M3 1.0.0.12. This flaw pertains to a buffer overflow vulnerability within the function formQuickIndex of the file /goform/QuickIndex, specifically involving the manipulation of the argument PPPOEPassword. This vulnerability is crucial as it can be exploited remotely, posing a significant threat to data confidentiality and system integrity.

Vulnerability Summary

CVE ID: CVE-2025-9298
Severity: High (CVSS 8.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda M3 | 1.0.0.12

How the Exploit Works

The vulnerability stems from inadequate boundary checks within the formQuickIndex function of the file /goform/QuickIndex in Tenda M3 1.0.0.12. By manipulating the PPPOEPassword argument, an attacker can trigger a stack-based buffer overflow. This can potentially allow an attacker to execute arbitrary code with the privileges of the process, leading to a system compromise or data leakage.

Conceptual Example Code

The following is a
conceptual
example of how the vulnerability might be exploited. This could be a malicious HTTP request sent to the vulnerable endpoint, exploiting the buffer overflow vulnerability.
```
POST /goform/QuickIndex HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
PPPOEPassword=<buffer overflow inducing string>
```
In this example, “ represents a string of characters that is longer than the application expects, causing the buffer overflow.

Mitigation

To mitigate this vulnerability, users are advised to apply the vendor patch when it becomes available. In the meantime, deploying a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can offer temporary protection. These systems can detect and block attempts to exploit this vulnerability, thereby limiting potential damage.
August 31, 2025
CVE-2025-9297: Critical Buffer Overflow Vulnerability in Tenda i22 1.0.0.3(4687)
Overview

A critical vulnerability has been identified in Tenda i22 1.0.0.3(4687), a widely used router. The vulnerability, tracked as CVE-2025-9297, affects the formWeixinAuthInfoGet function of the /goform/wxportalauth file. This flaw allows potential attackers to manipulate the ‘Type’ argument, leading to a stack-based buffer overflow. This can be exploited remotely and may result in a system compromise or data leakage, posing a significant risk to the confidentiality, integrity, and availability of user data and systems.

Vulnerability Summary

CVE ID: CVE-2025-9297
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 i22 | 1.0.0.3(4687)

How the Exploit Works

The vulnerability stems from improper input validation in the formWeixinAuthInfoGet function. When processing an argument labeled ‘Type,’ the function fails to adequately check the size of the user-supplied data. This allows an attacker to provide an excessively long string, causing the program to overwrite the stack’s memory. This could allow an attacker to execute arbitrary code with the privileges of the affected service, leading to potential unauthorized access, information disclosure, or denial of service.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited using a maliciously crafted HTTP request:
```
POST /goform/wxportalauth HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
Type=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...[Long string of 'A's causing buffer overflow]
```
The above example demonstrates a buffer overflow attack, where the ‘Type’ parameter is supplied with a long string of ‘A’s, which exceeds the buffer’s limit, leading to the overflow.

Mitigation Guidance

The most effective mitigation for this vulnerability is to apply the vendor-supplied patch. Until the patch can be applied, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to detect and block attempts to exploit this vulnerability. Configuring these systems to look for unusually long ‘Type’ argument values can help identify and block malicious requests.
August 31, 2025
CVE-2025-43300: Out-of-Bounds Write Issue in macOS and iOS Resulting in Memory Corruption
Overview

The world of cybersecurity is a constant battlefield, where new vulnerabilities are discovered and old ones are patched. One such recently discovered vulnerability, CVE-2025-43300, is a critical issue affecting multiple versions of macOS and iOS. This vulnerability, caused by an out-of-bounds write issue, can lead to memory corruption when processing a malicious image file.
The vulnerability is not just a theoretical risk. Apple has confirmed that there have been reports of this vulnerability being exploited in highly sophisticated attacks against specific individuals. This makes it a significant concern for all users of the affected systems, as potential exploitation could result in system compromise and data leakage.

Vulnerability Summary

CVE ID: CVE-2025-43300
Severity: High (CVSS: 8.8)
Attack Vector: Local Network
Privileges Required: None
User Interaction: Required
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

macOS Sonoma | 14.7.8
macOS Ventura | 13.7.8
iPadOS | 17.7.10
macOS Sequoia | 15.6.1
iOS | 18.6.2
iPadOS | 18.6.2

How the Exploit Works

This vulnerability stems from an out-of-bounds write issue, a common type of software bug that occurs when data is written past the end of an allocated data buffer. In the case of CVE-2025-43300, the flaw is located within the image file processing functions.
When a user opens a specially crafted image file, it triggers the flaw, leading to memory corruption. An attacker can leverage this to inject malicious code into the system, effectively gaining control over it. This can then be used to steal sensitive data or compromise the system further.

Conceptual Example Code

This vulnerability might be exploited using a specially crafted image file, as shown below in pseudocode:
```
Create malicious_image_file
Write out_of_bounds_data to malicious_image_file
```
The user then opens the malicious image file, which triggers the out-of-bounds write and subsequent memory corruption:
```
Open malicious_image_file
Read data from malicious_image_file
```
While the above example is highly simplified, it serves to illustrate the concept of the exploit. The actual exploit would involve careful crafting of the image file to trigger the flaw and execute the desired malicious payload.
August 31, 2025
CVE-2025-27216: Privilege Escalation in UISP Application Due to Incorrect Permission Assignment
Overview

A recently disclosed vulnerability, identified as CVE-2025-27216, poses a significant threat to the cybersecurity landscape. This vulnerability has been found in the UISP application, a popular software extensively used across various industry verticals. It revolves around a critical resource, which, due to improper permissions, could be exploited by a malicious actor to escalate privileges. This matters greatly, as it potentially exposes systems to compromise and increases the risk of sensitive data leakage. As such, security professionals and systems administrators dealing with UISP are strongly urged to familiarize themselves with the details of this vulnerability and apply the necessary mitigation strategies.

Vulnerability Summary

CVE ID: CVE-2025-27216
Severity: High (8.8 CVSS)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

UISP | All versions prior to update X.Y.Z

How the Exploit Works

This vulnerability stems from incorrect permission assignments for a critical resource within the UISP application. An attacker with certain permissions (classed as lower-level permissions) can manipulate these permissions to escalate their privileges within the application. This escalated access may grant the attacker more power and control over the application and the underlying system, potentially leading to system compromise or data leakage.

Conceptual Example Code

The following pseudocode example illustrates how an attacker might exploit this vulnerability:
```
# Attacker logs into the system with low-level permissions
$ ssh lowPrivUser@target.example.com
# Attacker locates critical resource with incorrect permissions
$ ls -l /path/to/critical/resource
# Attacker manipulates permissions to escalate privileges
$ sudo chown lowPrivUser /path/to/critical/resource
$ sudo chmod 777 /path/to/critical/resource
# Now, the attacker has full control over the critical resource
```
Please note that this is a simplified, conceptual example. Real-world exploits may be more complex and require a more detailed understanding of the system’s configuration and the UISP application’s internals.

Mitigation Guidance

The most effective way to mitigate this vulnerability is to apply the vendor-supplied patch. UISP has released an update that corrects the permission assignments and closes the avenue for privilege escalation. It is strongly recommended to update to the latest version of UISP as soon as possible.
As a temporary measure, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to monitor and potentially block exploit attempts. However, this is not a permanent solution and does not address the root cause of the vulnerability. Therefore, it should be seen as a stopgap measure until the patch can be applied.
August 31, 2025
CVE-2025-9253: Stack-based Buffer Overflow on Linksys Wi-Fi Range Extenders Leading to Potential System Compromise
Overview

A critical security vulnerability, designated as CVE-2025-9253, has been identified in a range of Linksys Wi-Fi range extenders. This issue has been found to affect RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 models with specific firmware versions. The vulnerability resides in the RP_doSpecifySiteSurvey function of the /goform/RP_doSpecifySiteSurvey file. An attacker can exploit this vulnerability and compromise the system or cause data leakage, posing significant risks for users.
The breach is particularly dangerous because the attack can be initiated remotely, and the exploit has been publicly disclosed. Despite being informed about this vulnerability, the vendor has remained silent, leaving the devices exposed to potential attacks.

Vulnerability Summary

CVE ID: CVE-2025-9253
Severity: High (8.8/10)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise, data leakage

Affected Products

Product | Affected Versions

Linksys RE6250 | 1.0.013.001, 1.0.04.001, 1.0.04.002
Linksys RE6300 | 1.0.013.001, 1.0.04.001, 1.0.04.002
Linksys RE6350 | 1.0.013.001, 1.0.04.001, 1.0.04.002
Linksys RE6500 | 1.0.013.001, 1.0.04.001, 1.0.04.002
Linksys RE7000 | 1.0.013.001, 1.0.04.001, 1.0.04.002, 1.1.05.003
Linksys RE9000 | 1.0.013.001, 1.0.04.001, 1.0.04.002, 1.1.05.003, 1.2.07.001

How the Exploit Works

The vulnerability stems from the improper handling of the ‘ssidhex’ argument in the function RP_doSpecifySiteSurvey. When an attacker manipulates ‘ssidhex’ and sends an overly long argument, it overflows the stack-based buffer. This overflow can lead to arbitrary code execution, granting the attacker control over the system.

Conceptual Example Code

The following is a conceptual example of how an attacker might exploit the vulnerability. This is not a working exploit but an illustration of the vulnerability:
```
POST /goform/RP_doSpecifySiteSurvey HTTP/1.1
Host: target_linksys_device_ip
Content-Type: application/x-www-form-urlencoded
ssidhex=41414141...[A*5000]
```
In this example, the ‘ssidhex’ argument is filled with a large number of ‘A’ characters (41 in hexadecimal), causing a buffer overflow.
August 31, 2025