CVSS 3.1 Score 5.4 of 10 (medium)


Published Jan 11, 2024
Updated: Jan 16, 2024


CVE-2024-21637 is a vulnerability affecting Authentik, an open-source Identity Provider. The vulnerability is a reflected Cross-Site Scripting (XSS) issue that can be exploited through JavaScript-URIs in OpenID Connect flows with response_mode=form_post. This vulnerability allows an attacker with low privileges to perform privilege escalation attacks. The issue has been patched in versions 2023.10.6 and 2023.8.6 of Authentik. The vulnerability has a base severity rating of MEDIUM and a base score of 5.4 according to NVD@NIST. It requires low privileges and user interaction, and its impact on integrity and confidentiality is considered low as well. The exploitability score is 2.3, indicating a moderate level of difficulty for exploitation.

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