CVE-2026-34212
Last modified
CVE-2026-34212 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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. EPSS estimates a 0.20% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Docmost | Docmost | < 0.71.0 |
References
- https://github.com/docmost/docmost/security/advisories/GHSA-cf68-cff9-hq4wExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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