# CVE-2025-66629: HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to 1.10.4, some of HedgeDoc's…

Source: https://junglewise.ai/threats/cve-2025-66629-hedgedoc-is-an-open-source-real-time-collaborative-markdown-notes  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-05  
License: CC BY 4.0 with a link back

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.

Technologies: [HedgeDoc](https://junglewise.ai/threats/technologies/hedgedoc). Vendors: [HedgeDoc](https://junglewise.ai/threats/vendors/hedgedoc).

## Quick answers

**Is CVE-2025-66629 exploited in the wild?** 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.

## Affected products

- HedgeDoc

## Related threats

- [HedgeDoc permission handler improper validation](https://junglewise.ai/threats/cve-2026-102927-hedgedoc-is-an-open-source-real-time-collaborative-markdown)
- [HedgeDoc CSRF in GitHub Gist export callback](https://junglewise.ai/threats/cve-2026-58489-hedgedoc-csrf-in-github-gist-export-callback)
- [HedgeDoc denial of service via YAML alias bomb in note frontmatter](https://junglewise.ai/threats/cve-2026-58486-hedgedoc-denial-of-service-via-yaml-alias-bomb-in-note)
- [HedgeDoc rate-limit bypass via CF-Connecting-IP spoofing](https://junglewise.ai/threats/cve-2026-58488-hedgedoc-rate-limit-bypass-via-cf-connecting-ip-spoofing)
- [HedgeDoc stored HTML injection via email local-part](https://junglewise.ai/threats/cve-2026-58487-hedgedoc-stored-html-injection-via-email-local-part)