cvedb.io
CVE-2026-33525
MEDIUM · CVSS 6.1
EPSS exploitation probability: 0%
Published 2026-03-26T20:16:14.740 · Last modified 2026-06-17T10:37:39.070

Summary

Authelia is an open-source authentication and authorization server providing two-factor authentication and single sign-on (SSO) for applications via a web portal. In version 4.39.15, an attacker may potentially be able to inject javascript into the Authelia login page if several conditions are met simultaneously. Unless both the `script-src` and `connect-src` directives have been modified it's almost impossible for this to have a meaningful impact. However if both of these are and they are done so without consideration to their potential impact; there is a are situations where this vulnerability could be exploited. This is caused to the lack of neutralization of the `langauge` cookie value when rendering the HTML template. This vulnerability is likely difficult to discover though fingerpri

Affected products

authelia — authelia

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.