CVE-2024-21637
XSS in Authentik via JavaScript-URI as Redirect URI and form_post Response Mode
5.4
MEDIUM
CVSS 3.1
EPSS 0.16%
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.
How to fix CVE-2024-21637
To remediate CVE-2024-21637, upgrade the affected package to a fixed version below.
- —upgrade to 2023.8.6 or later
Is CVE-2024-21637 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 2023.8.0, < 2023.8.6, >= 2023.10.0, < 2023.10.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |