{"id":"CVE-2026-50543","published":"2026-10-28T16:17:08.073","lastModified":"2026-10-28T16:17:08.073","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 authorization on `POST /displaygroup/criteria/{displayGroupId}` allows an authenticated user to send criteria updates to any display via `XMR`. These criteria determine schedule changes and can alter playback, for example by causing content scheduled for rainy weather to play when it is not raining. Exploitation requires `Schedule Criteria` to be in use on the CMS. This issue is fixed in version 4.4.3.","cvssScore":4.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","cwes":["CWE-862"],"vendors":[],"products":[],"references":[{"url":"https://github.com/xibosignage/xibo-cms/commit/93587cf872392e91534bb50aa6be071821383e25","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/commit/aeca5d6bfbc5eb8a825e6950913c9ab25dc9edc0","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/pull/3488","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/releases/tag/4.4.3","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/releases/tag/4.5.0-beta","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-737f-mfxg-jv9q","tags":[]}],"exploitRefs":[{"url":"https://github.com/xibosignage/xibo-cms/commit/93587cf872392e91534bb50aa6be071821383e25","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/commit/aeca5d6bfbc5eb8a825e6950913c9ab25dc9edc0","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/pull/3488","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/releases/tag/4.4.3","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/releases/tag/4.5.0-beta","tags":[]},{"url":"https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-737f-mfxg-jv9q","tags":[]}],"hasPoc":true,"ai":null}