CVE-2025-46339
FreshRSS vulnerable to favicon cache poisoning via proxy
- State
- Published
- Severity
- 4.3 Medium
- Published
- Jun 4, 2025
- Updated
- Jun 4, 2025
- Reserved
- Apr 22, 2025
Description
FreshRSS is a self-hosted RSS feed aggregator. Prior to version 1.26.2, it's possible to poison feed favicons by adding a given URL as a feed with the proxy set to an attacker-controlled one and disabled SSL verifying. The favicon hash is computed by hashing the feed URL and the salt, whilst not including the following variables: proxy address, proxy protocol, and whether SSL should be verified. Therefore it's possible to poison a favicon of a given feed by simply intercepting the response of the feed, and changing the website URL to one where a threat actor controls the feed favicon. Feed favicons can be replaced for all users by anyone. Version 1.26.2 fixes the issue.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N | GitHub_M |
Weaknesses
- CWE-349 Acceptance of Extraneous Untrusted Data With Trusted Data
Affected Products
| Product | Versions |
|---|---|
FreshRSSFreshRSS |
|
References
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