Vulnerabilities > CVE-2024-21641 - Unspecified vulnerability in Flarum
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
LOW Availability impact
NONE Summary
Flarum is open source discussion platform software. Prior to version 1.8.5, the Flarum `/logout` route includes a redirect parameter that allows any third party to redirect users from a (trusted) domain of the Flarum installation to redirect to any link. For logged-in users, the logout must be confirmed. Guests are immediately redirected. This could be used by spammers to redirect to a web address using a trusted domain of a running Flarum installation. The vulnerability has been fixed and published as flarum/core v1.8.5. As a workaround, some extensions modifying the logout route can remedy this issue if their implementation is safe.
Vulnerable Configurations
References
- https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a
- https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a
- https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176
- https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176
- https://github.com/flarum/framework/security/advisories/GHSA-733r-8xcp-w9mr
- https://github.com/flarum/framework/security/advisories/GHSA-733r-8xcp-w9mr