CVE-2025-54593
In versions 1.26.1 and below, an authenticated administrator user can execute arbitrary code on the FreshRSS server by modifying the update URL to one they control, and gain code execution after running an update.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
FreshRSS is a free, self-hostable RSS aggregator. In versions 1.26.1 and below, an authenticated administrator user can execute arbitrary code on the FreshRSS server by modifying the update URL to one they control, and gain code execution after running an update. After successfully executing code, user data including hashed passwords can be exfiltrated, the instance can be defaced when file permissions allow. Malicious code can be inserted into the instance to steal plaintext passwords, among others. This is fixed in version 1.26.2.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.78% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-94
- Affected
- freshrss/freshrss
- Source
- security-advisories@github.com
References
- https://github.com/FreshRSS/FreshRSS/commit/dbdadbb4107878d9233f635c31a88afe45957101Patch
- https://github.com/FreshRSS/FreshRSS/pull/7477Issue Tracking
- https://github.com/FreshRSS/FreshRSS/releases/tag/1.26.2Release Notes
- https://github.com/FreshRSS/FreshRSS/security/advisories/GHSA-jcww-48g9-wf57Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.