{"id":87060,"date":"2026-06-07T00:23:27","date_gmt":"2026-06-07T00:23:27","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-54591-information-exposure-in-freshrss-affecting-versions-1-26-3-and-below","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-54591-information-exposure-in-freshrss-affecting-versions-1-26-3-and-below\/","title":{"rendered":"CVE-2025-54591: Information Exposure in FreshRSS affecting versions 1.26.3 and below<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

This report discusses a significant vulnerability identified as CVE-2025-54591 that affects FreshRSS, a self-hostable RSS aggregator. This vulnerability exposes sensitive information about feeds and tags of default admin users, posing a potential threat to system compromise and data leakage. It primarily affects users running versions 1.26.3 and below of the software.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-54591
\nSeverity: High (7.5 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise or data leakage due to lack of access checking in the FreshRSS_Auth::hasAccess() function<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

FreshRSS | 1.26.3 and below<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability arises due to a lack of access checking in the FreshRSS_Auth::hasAccess() function used by some of the tag\/feed related endpoints. FreshRSS controllers usually have a defined firstAction() method with an override to make sure that every action requires access. However, when this method is not defined, each action must manually check for access. The vulnerability is exploited when certain endpoints neither use the firstAction() method nor perform a manual access check, thereby exposing sensitive information.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here is a conceptual example of how the vulnerability might be exploited. This hypothetical HTTP request targets an unprotected endpoint:<\/p>\n

GET \/feed\/endpoint HTTP\/1.1\nHost: target.example.com<\/code><\/pre>\n
This request could potentially expose sensitive information about feeds and tags of default admin users due to the lack of access control checks.
\nPlease note that this example is purely theoretical and is provided to assist in understanding the nature of the vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview This report discusses a significant vulnerability identified as CVE-2025-54591 that affects FreshRSS, a self-hostable RSS aggregator. This vulnerability exposes sensitive information about feeds and tags of default admin users, posing a potential threat to system compromise and data leakage. It primarily affects users running versions 1.26.3 and below of the software. Vulnerability Summary CVE […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-87060","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t