CVE-2026-52853
mediumDocmost is open-source collaborative wiki and documentation software.
Docmost is open-source collaborative wiki and documentation software. Prior to 0.90.1, an authenticated workspace ADMIN can use the workspace invitation flow to invite an external email address with the OWNER role because the role ceiling does not prevent ADMIN users from granting privileges above their own. When the invitation is accepted, the new account receives OWNER-level permissions, allowing the ADMIN to create a backdoor OWNER account or promote a colluding external user to the workspace's highest privilege level. This issue is fixed in version 0.90.1.
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/docmost/docmost/commit/33895b060790358869f54ae451c3848480b39503 security-advisories@github.com
- https://github.com/docmost/docmost/pull/2250 security-advisories@github.com
- https://github.com/docmost/docmost/releases/tag/v0.90.1 security-advisories@github.com
- https://github.com/docmost/docmost/security/advisories/GHSA-84fx-mvqx-p5gx security-advisories@github.com