Medium 5.4Published Jan 21, 2026

CVE-2026-23630Docmost is open-source collaborative wiki and documentation software.

Updated under an hour ago (2026-10-19 09:00 UTC)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for docmost

Exploited in the last 30 days

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.

CVSS: 5.4 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness (CWE): CWE-79, CWE-116
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

docmost docmost docmost:docmost	from 0.3.0 before 0.24.0	NVD

References

https://github.com/docmost/docmost/commit/cb9f27da9a8b4940760e37e5238a1eb91e427dafpatch
https://github.com/docmost/docmost/releases/tag/v0.24.0product, release-notes
https://github.com/docmost/docmost/security/advisories/GHSA-r4hj-mc62-jmwjexploit, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.