CVE-2026-23630 - Docmost is vulnerable to stored Cross-Site Scripting (XSS) through Mermaid rende...

CVE-2026-23630 - Docmost is vulnerable to stored Cross-Site Scripting (XSS) through Mermaid rende...

CVE ID : CVE-2026-23630 Published : Jan. 21, 2026, 11:15 p.m. | 22 minutes ago Description : 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. Severity: 6.3 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
MEDIUM
Published
Jan. 21, 2026
Impact: XSS