Description
Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to 4.4.3, missing access-control checks on `PUT/DELETE /action/{id}` allow an authenticated user to modify or delete actions on any Layout. Exploitation requires the privilege to allow edits, including deletion, to all created Layouts, which is granted to non-administrators as standard. This issue concerns `Layout actions` rather than the separately reported DataSet export vulnerability. This issue is fixed in version 4.4.3.
References6
- github.com/xibosignage/xibo-cms/commit/96d7b458781b8cd10e647885…
- github.com/xibosignage/xibo-cms/commit/efd13abf868e2386f40929ed…
- github.com/xibosignage/xibo-cms/pull/3492
- github.com/xibosignage/xibo-cms/releases/tag/4.4.3
- github.com/xibosignage/xibo-cms/releases/tag/4.5.0-beta
- github.com/xibosignage/xibo-cms/security/advisories/GHSA-7j3h-4…
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L - EPSS — exploit probability
- 0% percentile: 22 · as of 3 November 2026
- CWE
- CWE-862
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.