XSS in Zitadel

CVE-2025-67495

ZITADEL is an open-source identity infrastructure tool. Versions 4.0.0-rc.1 through 4.7.0 are vulnerable to DOM-Based XSS through the Zitadel V2 logout endpoint. The /logout endpoint insecurely routes to a value that is supplied in the post_logout_redirect GET parameter. As a result, unauthenticated remote attacker can execute malicious JS code on Zitadel users’ browsers. To carry out an attack, multiple user sessions need to be active in the same browser, however, account takeover is mitigated when using Multi-Factor Authentication (MFA) or Passwordless authentication. This issue is fixed in version 4.7.1.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.003 (20.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-67495: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: -0.000

Affected products

  • Zitadel — versions < 1.80.0-v2.20.0.20251208091519-4c879b47334e, >= 1.83.4, <= 1.87.5, >= 4.0.0-rc.1, < 4.7.1

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-67495?
CVE-2025-67495 is a high-severity vulnerability in Zitadel, classified under Cross-site Scripting. CVSS score: 8.0/10. Published 2025-12-09.
How severe is CVE-2025-67495?
High severity. CVSS v3 base score is 8.0 out of 10.