CVE-2025-57769

MEDIUM

FreshRSS < 1.27.0 - Cross-Site Scripting and Privilege Escalation via Iframe UI Obscuring

Title source: llm
STIX 2.1

Description

FreshRSS is a free, self-hostable RSS aggregator. Versions 1.26.3 and below contain a vulnerability where a specially crafted page can trick a user into executing arbitrary JS code or promoting a user in FreshRSS by obscuring UI elements in iframes. If embedding an authenticated iframe is possible, this may lead to privilege escalation via obscuring the promote user button in the admin UI or XSS by tricking the user to drag content into the UserJS text area. This is fixed in version 1.27.0

References (3)

Core 3
Core References

Scores

CVSS v3 6.1
EPSS 0.0025
EPSS Percentile 16.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-79 CWE-1021
Status published
Products (1)
freshrss/freshrss < 1.27.0
Published Sep 29, 2025
Tracked Since Feb 18, 2026