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URL: https://nvd.nist.gov/vuln/detail/CVE-2024-21641

⇱ NVD - CVE-2024-21641

  1. Vulnerabilities

CVE-2024-21641 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a CVE, GitHub, Inc. Patch 
https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176 CVE, GitHub, Inc. Patch 
https://github.com/flarum/framework/security/advisories/GHSA-733r-8xcp-w9mr CVE, GitHub, Inc. Patch  Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-601 URL Redirection to Untrusted Site ('Open Redirect') GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
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Change History

7 change records found show changes

CVE Modified by CISA-ADP 6/17/2026 3:09:54 AM

Action Type Old Value New Value
Added SSVC 
{"timestamp":"2025-05-08T15:56:54.587072Z","id":"CVE-2024-21641","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by GitHub, Inc. 6/17/2026 3:09:54 AM

Action Type Old Value New Value
Added Affected 
[{"vendor":"flarum","product":"framework","versions":[{"version":"< 1.8.5","status":"affected"}]}]

CVE Modified by GitHub, Inc. 1/17/2025 2:15:28 PM

Action Type Old Value New Value
Added CVSS V3.1 
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Removed CVSS V3.1 
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CVE Modified by CVE 11/21/2024 3:54:47 AM

Action Type Old Value New Value
Added Reference 
https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a
Added Reference 
https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176
Added Reference 
https://github.com/flarum/framework/security/advisories/GHSA-733r-8xcp-w9mr

CVE Modified by GitHub, Inc. 5/14/2024 10:55:26 AM

Action Type Old Value New Value

Initial Analysis by NIST 1/18/2024 3:42:19 PM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Added CPE Configuration 
OR
 *cpe:2.3:a:flarum:flarum:*:*:*:*:*:*:*:* versions up to (excluding) 1.8.5
Changed Reference Type 
https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a No Types Assigned


 
https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a Patch
Changed Reference Type 
https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176 No Types Assigned


 
https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176 Patch
Changed Reference Type 
https://github.com/flarum/framework/security/advisories/GHSA-733r-8xcp-w9mr No Types Assigned


 
https://github.com/flarum/framework/security/advisories/GHSA-733r-8xcp-w9mr Patch, Vendor Advisory

New CVE Received from GitHub, Inc. 1/05/2024 4:15:43 PM

Action Type Old Value New Value
Added 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.
Added CVSS V3.1 
GitHub, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Added CWE 
GitHub, Inc. CWE-601
Added Reference 
GitHub, Inc. https://github.com/flarum/flarum-core/commit/ee8b3b4ad1413a2b0971fdd9e40f812d2a3a9d3a [No types assigned]
Added Reference 
GitHub, Inc. https://github.com/flarum/framework/commit/7d70328471cf3091d92d95c382d277aec7996176 [No types assigned]
Added Reference 
GitHub, Inc. https://github.com/flarum/framework/security/advisories/GHSA-733r-8xcp-w9mr [No types assigned]

Quick Info

CVE Dictionary Entry:
CVE-2024-21641
NVD Published Date:
01/05/2024
NVD Last Modified:
06/17/2026
Source:
GitHub, Inc.