Low 3.7Published Dec 5, 2025

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

Updated under an hour ago (Oct 26, 2026, 6:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for hedgedoc

Exploited in the last 30 days

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.

CVSS: 3.7 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Weakness (CWE): CWE-352
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Dec 8, 2025
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

hedgedoc hedgedoc hedgedoc:hedgedoc (from the name)	before 1.10.4	CNA record
hedgedoc hedgedoc hedgedoc:hedgedoc	before 1.10.4	NVD

References

References

https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-6wm6-3vpq-6qvv	x-refsource-confirm, patch, vendor-advisory
https://github.com/hedgedoc/hedgedoc/commit/35f36fccba941ed8029ee222f7d2a5df17b42e2b	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.