CVE-2026-23630

MEDIUM

5.4

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.

Details CVE

Score CVSS v3.15.4

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurREQUIRED

Publie1/21/2026

Derniere modification2/17/2026

Sourcenvd

Observations honeypot0

Produits affectes

docmost:docmost

Faiblesses (CWE)

CWE-79CWE-116CWE-79

References

https://github.com/docmost/docmost/commit/cb9f27da9a8b4940760e37e5238a1eb91e427daf(security-advisories@github.com)

https://github.com/docmost/docmost/releases/tag/v0.24.0(security-advisories@github.com)

https://github.com/docmost/docmost/security/advisories/GHSA-r4hj-mc62-jmwj(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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