cve/2024/CVE-2024-21641.md

### [CVE-2024-21641](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-21641)
![](https://img.shields.io/static/v1?label=Product&message=framework&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=%3C%201.8.5%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-601%3A%20URL%20Redirection%20to%20Untrusted%20Site%20('Open%20Redirect')&color=brightgreen)

### Description

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.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cve-scores