CVE-2026-40927

Docmost: XSS in Comments with JavaScript URI

State: Published
Severity: 5.4 Medium
Published: Apr 21, 2026
Updated: Apr 22, 2026
Reserved: Apr 15, 2026

Description

Docmost is open-source collaborative wiki and documentation software. Prior to 0.80.0, when leaving a comment on a page, it is possible to include a JavaScript URI as the link. When a user clicks on the link the JavaScript executes. This vulnerability is fixed in 0.80.0.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
docmostdocmost	< 0.80.0Affected

References

https://github.com/docmost/docmost/security/advisories/GHSA-4gv6-jw3v-wc34

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