CVE-2026-34212

Description

Docmost is open-source collaborative wiki and documentation software. In versions prior to 0.71.0, improper neutralization of attachment URLs in Docmost allows a low-privileged authenticated user to store a malicious `javascript:` URL inside an attachment node in page content. When another user views the page and activates the attachment link/icon, attacker-controlled JavaScript executes in the context of the Docmost origin. Version 0.71.0 patches the issue.

PUBLISHED Reserved 2026-03-26 | Published 2026-04-14 | Updated 2026-04-15 | Assigner GitHub_M

Problem types

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

Product status

References

github.com/...ocmost/security/advisories/GHSA-cf68-cff9-hq4w

cve.org (CVE-2026-34212)

nvd.nist.gov (CVE-2026-34212)

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