Docmost page content has stored XSS via unsanitized attachment URLs
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.4epss 0.2%
from disclosure to weapon73 days
Published on NVDApr 14
1st PoC+73d
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected products
docmost · docmostpublic PoCs found — 1
githubgithub.com/0xmrma/CVE-2026-34212★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.