CVE-2025-66629: HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to 1.10.4, some of HedgeDoc's…
CVE-2025-66629 · Severity: low · CVSS 3.7 · Published 2025-12-05
HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to 1.10.4, some of HedgeDoc's OAuth2 endpoints for social login providers such as Google, GitHub, GitLab, Facebook or Dropbox lack CSRF protection, since they don't send a state parameter and verify the response using this parameter. This vulnerability is fixed in 1.10.4.
No. Junglewise Threat Intelligence has no report of CVE-2025-66629 being exploited in the wild.
How severe is CVE-2025-66629?
Low severity, with a CVSS score of 3.7, published 5 December 2025.
Which products and versions are affected?
HedgeDoc. The advisory does not name versions.
Is there a fix for CVE-2025-66629?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-66629?
Check whether you run HedgeDoc. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.