{"schema":"threatline.record/2","record":{"id":"CVE-2026-50543","aliases":["GHSA-737f-mfxg-jv9q"],"summary":"Xibo: Missing Authorization on POST /displaygroup/criteria/{displayGroupId} Allows Arbitrary Scheduling Criteria Injection to Player Devices","details":"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.","categories":["Unclassified"],"product":"xibo-cms","vendor":"xibosignage","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-50543","source_modified_at":"2026-10-28T15:32:51.861Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"xibo-cms","vendor":"xibosignage","versions":[{"version":"< 4.4.3","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":4.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T15:32:51.861Z","modified_at":"2026-10-28T15:32:51.861Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-50543","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28T15:32:51.861Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-737f-mfxg-jv9q","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/xibosignage/xibo-cms/pull/3488","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/xibosignage/xibo-cms/commit/93587cf872392e91534bb50aa6be071821383e25","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/xibosignage/xibo-cms/commit/aeca5d6bfbc5eb8a825e6950913c9ab25dc9edc0","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/xibosignage/xibo-cms/releases/tag/4.4.3","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/xibosignage/xibo-cms/releases/tag/4.5.0-beta","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-28T15:32:51.861Z","content_hash":"57eb08a3deee4f49192bd9ee6d19751a65bfe5ca996002af971c4d594dfc4292"}}