Docmost is open-source collaborative wiki and documentation software. In versions 0.3.0 through 0.23.2, Mermaid code block rendering is vulnerable to stored Cross-Site Scripting (XSS). The frontend can render attacker-controlled Mermaid diagrams using mermaid.render(), then inject the returned SVG/HTML into the DOM via dangerouslySetInnerHTML without sanitization. Mermaid per-diagram %%{init}%% directives allow overriding securityLevel and enabling htmlLabels, permitting arbitrary HTML/JS execution for any viewer. This issue has been fixed in version 0.24.0.
References
| Link | Resource |
|---|---|
| https://github.com/docmost/docmost/commit/cb9f27da9a8b4940760e37e5238a1eb91e427daf | Patch |
| https://github.com/docmost/docmost/releases/tag/v0.24.0 | Product Release Notes |
| https://github.com/docmost/docmost/security/advisories/GHSA-r4hj-mc62-jmwj | Exploit Vendor Advisory |
Configurations
History
17 Feb 2026, 16:50
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/docmost/docmost/commit/cb9f27da9a8b4940760e37e5238a1eb91e427daf - Patch | |
| References | () https://github.com/docmost/docmost/releases/tag/v0.24.0 - Product, Release Notes | |
| References | () https://github.com/docmost/docmost/security/advisories/GHSA-r4hj-mc62-jmwj - Exploit, Vendor Advisory | |
| CPE | cpe:2.3:a:docmost:docmost:*:*:*:*:*:*:*:* | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.4 |
| First Time |
Docmost
Docmost docmost |
21 Jan 2026, 23:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-01-21 23:15
Updated : 2026-02-17 16:50
NVD link : CVE-2026-23630
Mitre link : CVE-2026-23630
CVE.ORG link : CVE-2026-23630
JSON object : View
Products Affected
docmost
- docmost