CVE-2024-21641
moderate-risk
Published 2024-01-05
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.
Do I need to act?
!
32.8% chance of exploitation in next 30 days
EPSS score — higher than 67% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10
Medium
NETWORK
/ LOW complexity
Affected Products (1)
Flarum
Affected Vendors
References (6)
45
/ 100
moderate-risk
Severity
24/34 · High
Exploitability
16/34 · Moderate
Exposure
5/34 · Minimal