CVE-2025-62166 PUBLISHED

FreshRSS has an IDOR which allows for viewing feeds of any user and leaking tokens

Assigner: GitHub_M
Reserved: 07.10.2025 Published: 09.03.2026 Updated: 09.03.2026

FreshRSS is a free, self-hostable RSS aggregator. Prior 1.28.0, a bug in the auth logic related to master authentication tokens, this restriction is bypassed. Usually only the default user's feed should be viewable if anonymous viewing is enabled, and feeds of other users should be private. This vulnerability is fixed in 1.28.0.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	FreshRSS
Product	FreshRSS
Versions	Version < 1.28.0 is affected

References

Problem Types

CWE-284: Improper Access Control CWE
CWE-639: Authorization Bypass Through User-Controlled Key CWE