---
id: CVE-2025-66629
title: >-
  HedgeDoc is an open source, real-time, collaborative, markdown notes
  application
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, s…
severity: low
cvss: 3.7
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-352
vendor: hedgedoc
product: hedgedoc
affected:
  - hedgedoc < 1.10.4
patched:
  - hedgedoc 1.10.4
published: '2025-12-05'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T21:10:00.327'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-66629'
references:
  - url: >-
      https://github.com/hedgedoc/hedgedoc/commit/35f36fccba941ed8029ee222f7d2a5df17b42e2b
    label: security-advisories@github.com
  - url: >-
      https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-6wm6-3vpq-6qvv
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.001
epssPercentile: 0.00864
ingestedAt: '2026-10-27T18:12:09.281Z'
---

## Overview

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.

## Affected

- `hedgedoc < 1.10.4`

## Remediation

Upgrade past the affected range:

- `hedgedoc 1.10.4`