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    CVE-2024-21637

    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.

    Published:Jan 11, 2024
    Last Modified:Jun 17, 2025
    EPS:Jan 11, 2024
    EPSS Score:0.00083
    CVSS Score:7.7

    Affected Products

    Vendor
    Goauthentik
    Product
    Authentik

    Exploits

    No exploit reference

    Related CVEs

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    CVE-2026-55106 (CVSS 5.3) — authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, a diagnostic action on the LDAP…
    CVE-2026-61574 (CVSS 8.8) — authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, the Remote Access Control endpo…
    CVE-2026-54730 (CVSS 8.6) — authentik is an open-source identity provider. Prior to 2026.2.6 and 2026.5.5, the enterprise Google Chrome de…
    CVE-2026-49448 (CVSS 9.8) — authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, the Source…
    CVE-2026-49443 (CVSS 8.8) — authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, an attacke…
    CVE-2026-47201 (CVSS 8.5) — authentik is an open-source identity provider. Prior to versions 2025.12.5, 2026.2.3, and 2026.5.1, authentik'…
    CVE-2026-42849 (CVSS 9.3) — authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, due to the implementa…
    CVE-2026-41569 (CVSS 6.9) — authentik is an open-source identity provider. Prior to version 2026.2.3, the WS-Federation provider validates…
    CVE-2026-41577 (CVSS 6.9) — authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, the SAML source respo…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High