Summaryinfo

A vulnerability marked as problematic has been reported in Anon Proxy Server 0.104. Impacted is an unknown function of the file /anon.php of the component URL Handler. This manipulation of the argument port/proxyPort causes cross site scripting. This vulnerability is tracked as CVE-2025-41355. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Anon Proxy Server 0.104. It has been declared as problematic. Affected by this vulnerability is an unknown code of the file /anon.php of the component URL Handler. The manipulation of the argument port/proxyPort with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Reflected Cross-Site Scripting (XSS) vulnerability in Anon Proxy Server v0.104. This vulnerability allows an attacker to execute JavaScript code in the victim's browser by sending him/her a malicious URL. This vulnerability can be exploited to steal sensitive user data, such as session cookies, or to perform actions on behalf of the user. It affects 'port' and 'proxyPort' parameters in '/anon.php' endpoint.

The weakness was disclosed by Rafael Pedrero. The advisory is shared at incibe.es. This vulnerability is known as CVE-2025-41355 since 04/16/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:anon.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Firewall Software

Name

• Anon Proxy Server

Version

• 0.104

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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