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Status published
High
CVE-2024-21637
XSS in Authentik via JavaScript-URI as Redirect URI and form_post Response Mode
Vulnerability Description
Authentik is an open-source Identity Provider. Authentik is a vulnerable to a reflected Cross-Site Scripting vulnerability via JavaScript-URIs in OpenID Connect flows with `response_mode=form_post`. This relatively user could use the described attacks to perform a privilege escalation. This vulnerability has been patched in versions 2023.10.6 and 2023.8.6.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
goauthentik
View all reports →Affected Software
authentik
Vulnerable Versions:
<= 2023.10.5, <= 2023.8.5
Timeline
Official Publish:
January 11th, 2024
Last Modified:
June 17th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H