CVE-2025-66629 – HedgeDoc is missing state parameter in OAuth2 flows could lead to CSRF

CVE ID : CVE-2025-66629

Published : Dec. 5, 2025, 11:15 p.m. | 1 hour, 50 minutes ago

Description : 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.

Severity: 3.7 | LOW

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