HedgeDoc is missing state parameter in OAuth2 flows could lead to CSRF
Priority LOW 19CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-352.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00108 1st percentileScored 2026-11-07
Fix Fixed hedgedoc (hedgedoc): 1.10.4
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA hedgedoc (hedgedoc) Fixed in 1.10.4
Timeline
- 2026-10-02 Threatist record created from CVE-2025-66629
References
More Hedgedoc vulnerabilities
- TI-2023-19867 HedgeDoc API allows to hide existing notes CVSS 3.1HIGH 8.2
- TI-2024-30379 MySQL & free URL mode allows to hide existing notes in hedgedoc CVSS 3.1MEDIUM 6.5
- TI-2021-10188 PDF export allows arbitrary file reads CVSS 3.1CRITICAL 10.0
- TI-2020-16108 Stored XSS in mermaid diagrams CVSS 3.1HIGH 8.7
- TI-2021-10211 Improper Neutralization of Script-Related HTML Tags in Notes CVSS 3.1HIGH 8.1
- TI-2021-16561 XSS vector in slide mode speaker-view CVSS 3.1HIGH 8.1
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences