PT-2026-34179 · Docmost · Docmost

Published 2026-04-21 · Updated 2026-04-26 · CVE-2026-40927

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Docmost versions prior to 0.80.0

Description Docmost is an open-source collaborative wiki and documentation software. The software allows the inclusion of a JavaScript URI as a link when leaving a comment on a page. If a user clicks on this link, the JavaScript executes, leading to a cross-site scripting issue.

Recommendations Update to version 0.80.0.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-40927

Affected Products

Docmost

References · 3

• https://github.com/docmost/docmost/security/advisories/GHSA-4gv6-jw3v-wc34 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40927 · Security Note
• https://twitter.com/CVEnew/status/2048481107822227827 · Twitter Post