Docmost: Privilege Escalation - ADMIN Can Invite Users as OWNER

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-52853
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-24 19:17:14 UTC
Updated2026-10-05 16:17:14 UTC
DescriptionDocmost 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.

Risk And Classification

Primary CVSS: v3.1 5.2 MEDIUM from [email protected]

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

EPSS: 0.002070000 probability, percentile 0.098880000 (date 2026-10-06)

Problem Types: CWE-269 | CWE-269 CWE-269: Improper Privilege Management

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.2MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N
3.1CNADECLARED5.2MEDIUMCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Docmost Docmost affected < 0.90.1 Not specified

References

ReferenceSourceLinkTags
github.com/docmost/docmost/security/advisories/GHSA-84fx-mvqx-p5gx [email protected] github.com
github.com/docmost/docmost/releases/tag/v0.90.1 [email protected] github.com
github.com/docmost/docmost/commit/33895b060790358869f54ae451c3848480b39503 [email protected] github.com
github.com/docmost/docmost/pull/2250 [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report