FreshRSS up to 1.26.1 fetch cross site scripting

Summaryinfo

A vulnerability described as problematic has been identified in FreshRSS up to 1.26.1. The affected element is the function fetch. Executing a manipulation can lead to cross site scripting. This vulnerability appears as CVE-2025-32015. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in FreshRSS up to 1.26.1. It has been declared as problematic. This vulnerability affects the function fetch. The manipulation 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. CVE summarizes:

FreshRSS is a self-hosted RSS feed aggregator. Prior to version 1.26.2, HTML is sanitized improperly inside the `` attribute, which leads to cross-site scripting (XSS) by loading an attacker's UserJS inside ``. In order to execute the attack, the attacker needs to control one of the victim's feeds and have an account on the FreshRSS instance that the victim is using. An attacker can gain access to the victim's account by exploiting this vulnerability. If the victim is an admin it would be possible to delete all users (cause damage) or execute arbitrary code on the server by modifying the update URL using fetch() via the XSS. Version 1.26.2 contains a patch for the issue.

The advisory is available at github.com. This vulnerability was named CVE-2025-32015 since 04/01/2025. The exploitation appears to be difficult. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

Upgrading to version 1.26.2 eliminates this vulnerability. Applying the patch 54e2f9107d03c5b3bb260f38fdb2736bce449fd4 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• FreshRSS

Version

• 1.26.0
• 1.26.1

License

• open-source

Website

• Product: https://github.com/FreshRSS/FreshRSS/

CPE 2.3info

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CPE 2.2info

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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