CVE-2025-46339 (GCVE-0-2025-46339)
Vulnerability from cvelistv5 – Published: 2025-06-04 20:04 – Updated: 2025-06-04 20:48
VLAI
EPSS
VEX
Title
FreshRSS vulnerable to favicon cache poisoning via proxy
Summary
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.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-04 20:48 UTC
CWE
- CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data
Assigner
GitHub_M
CNA
References
2 references
| URL | Tags |
|---|---|
| https://github.com/FreshRSS/FreshRSS/security/adv… | x_refsource_CONFIRM |
| https://github.com/FreshRSS/FreshRSS/commit/3776e… | x_refsource_MISC |
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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