FreshRSS 1.11.1 Cross Site Scripting

FreshRSS 1.11.1 Cross Site Scripting

FreshRSS 1.11.1 - Multiple XSS
Advisory ID: FreshRSS 1.11.1 Cross Site Scripting

FreshRSS 1.11.1 - Multiple XSS
Advisory ID: RO-18-007
Severity: Medium
Vendor: FreshRSS
Product: FreshRSS
Version: 1.11.1


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

Timeline:

[2018-01-01] - Discovered

Credits: Omar Kurt