Overview #

Multiple Cross-site Scripting (XSS) vulnerabilities exist in FreshRSS version 1.11.1. The vulnerabilities allow remote attackers to inject arbitrary web script or HTML.

Vulnerability Details #

Affected Versions: 1.11.1 and earlier

Root Cause: Insufficient input validation and output encoding on multiple parameters allows XSS attacks.

Exploitation Requirements #

• Authentication may be required
• Victim must visit crafted URLs or pages

Impact #

Remote attackers can exploit these vulnerabilities to:

• Steal user session cookies
• Access RSS feed data
• Perform actions on behalf of users

Proof of Concept #

Details available upon request.

Solution #

Upgrade to a patched version of FreshRSS that includes proper input sanitization.

References #

• Vendor notification sent