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TI-2025-34364 Aliases CVE-2025-54593

FreshRSS is vulnerable to RCE attacks by authenticated admin

Priority HIGH 67CWE-94Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00941 61st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed FreshRSS (FreshRSS): 1.26.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
FreshRSSFreshRSSbefore 1.26.21.26.2Patch availableCNA
  • FreshRSS VendorFreshRSS Affected before 1.26.2 Fixed in 1.26.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:freshrss:freshrss:*:*:*:*:*:*:*:*before 1.26.2VulnerableFreshRSS
  • cpe:2.3:a:freshrss:freshrss:*:*:*:*:*:*:*:* Versions before 1.26.2 Vulnerable ·FreshRSS

Remediation

  • Fix · CNA FreshRSS (FreshRSS) Fixed in 1.26.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-54593

References

Exploit 1

Patch 1

Other 2

  • TI-2025-34609 FreshRSS: Unauthorized creation of admin user when registration is enabled CVSS 3.1CRITICAL 9.8
  • TI-2025-34363 FreshRSS has Incomplete Session Termination on Logout CVSS 4.0HIGH 8.8
  • TI-2025-38485 FreshRSS has an IDOR which allows for viewing feeds of any user and leaking tokens CVSS 3.1HIGH 7.5
  • TI-2025-34362 FreshRSS: Unauthenticated users can view default user's information CVSS 3.1HIGH 7.5
  • TI-2025-38032 FreshRSS is vulnerable to directory enumeration by setting path in its theme field CVSS 4.0MEDIUM 6.9
  • TI-2025-37337 FreshRSS has Logout CSRF that Leads to DoS via <track src> CVSS 3.1MEDIUM 6.5
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences