Docmost: XSS in Comments with JavaScript URI

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-40927
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-21 21:16:46 UTC
Updated2026-04-21 21:16:46 UTC
DescriptionDocmost 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.

Risk And Classification

Primary CVSS: v3.1 5.4 MEDIUM from [email protected]

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

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED5.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Docmost Docmost affected < 0.80.0 Not specified

References

ReferenceSourceLinkTags
github.com/docmost/docmost/security/advisories/GHSA-4gv6-jw3v-wc34 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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