CVE-2024-21637 HIGH

CVE-2024-21637: XSS in Authentik via JavaScript-URI as Redirect URI and form_post Response Mode

Vendor Goauthentik
Product authentik
Weakness CWE-79 · XSS
Published January 11, 2024
Last update June 17, 2025
View on NVD All CVEs

CVSS base score

7.7/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

What the vulnerability does

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.

Key dates

Disclosure timeline

January 11, 2024 CVE published
June 17, 2025 Record updated