{"id":"CVE-2026-50543","revision":null,"records":[{"revision":"7beb3728a31844ff944ea4da136123d1","observedAt":"2026-10-28T16:46:48.767+00:00","statement":{"source":"cve-program","id":"CVE-2026-50543","aliases":[],"title":"Xibo: Missing Authorization on POST /displaygroup/criteria/{displayGroupId} Allows Arbitrary Scheduling Criteria Injection to Player Devices","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.","state":0,"publishedAt":"2026-10-28T15:32:51.861+00:00","modifiedAt":"2026-10-28T15:32:51.861+00:00","affected":[{"ecosystem":"Vendor product","name":"xibo-cms","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"xibosignage\",\n                    \"product\": \"xibo-cms\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.4.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","score":4.3,"severity":"MEDIUM"}],"references":["https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-737f-mfxg-jv9q","https://github.com/xibosignage/xibo-cms/pull/3488","https://github.com/xibosignage/xibo-cms/commit/93587cf872392e91534bb50aa6be071821383e25","https://github.com/xibosignage/xibo-cms/commit/aeca5d6bfbc5eb8a825e6950913c9ab25dc9edc0","https://github.com/xibosignage/xibo-cms/releases/tag/4.4.3","https://github.com/xibosignage/xibo-cms/releases/tag/4.5.0-beta"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-50543","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-50543","identifiers":["CVE-2026-50543"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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