Vulnerability Details CVE-2024-21641
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.398
EPSS Ranking 97.2%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2024-21641
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cpe:2.3:a:flarum:flarum:-
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cpe:2.3:a:flarum:flarum:0.1.0
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cpe:2.3:a:flarum:flarum:1.0.0
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cpe:2.3:a:flarum:flarum:1.0.1
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cpe:2.3:a:flarum:flarum:1.0.2
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cpe:2.3:a:flarum:flarum:1.0.3
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cpe:2.3:a:flarum:flarum:1.0.4
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cpe:2.3:a:flarum:flarum:1.1.0
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cpe:2.3:a:flarum:flarum:1.1.1
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cpe:2.3:a:flarum:flarum:1.2.0
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cpe:2.3:a:flarum:flarum:1.2.1
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cpe:2.3:a:flarum:flarum:1.3.0
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cpe:2.3:a:flarum:flarum:1.3.1
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cpe:2.3:a:flarum:flarum:1.4.0
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cpe:2.3:a:flarum:flarum:1.5.0
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cpe:2.3:a:flarum:flarum:1.6.0
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cpe:2.3:a:flarum:flarum:1.6.1
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cpe:2.3:a:flarum:flarum:1.6.2
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cpe:2.3:a:flarum:flarum:1.6.3
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cpe:2.3:a:flarum:flarum:1.7.0
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cpe:2.3:a:flarum:flarum:1.7.1
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cpe:2.3:a:flarum:flarum:1.8.0
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cpe:2.3:a:flarum:flarum:1.8.1