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.
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History
Tue, 03 Jun 2025 15:15:00 +0000
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ssvc
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Fri, 17 Jan 2025 18:30:00 +0000
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cvssV3_1
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2024-01-05T21:02:56.513Z
Updated: 2025-06-03T14:40:49.162Z
Reserved: 2023-12-29T03:00:44.957Z
Link: CVE-2024-21641

Updated: 2024-08-01T22:27:36.096Z

Status : Modified
Published: 2024-01-05T21:15:43.337
Modified: 2025-01-17T19:15:28.590
Link: CVE-2024-21641

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