{"id":"CVE-2026-50542","kind":"vulnerability","aliases":["CVE-2026-50542"],"related":[],"title":"Xibo: any logged-in user can read other users' layout status","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 `GET /layout/status/{id}` allow an authenticated user with any privileges to view the `status and metadata` of any layout, including layouts for which the user does not have view rights. This issue is fixed in version 4.4.3.","summary":"Xibo, an open source digital signage platform, is missing access-control checks on the layout status endpoint before version 4.4.3. An authenticated user with any role can read the status and metadata of layouts they have no view rights to.","severity":"medium","cvss":5.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["digital-signage","other","self-hosted","xibo"],"not_affected_if":["managed-hosting","version-4.4.3-or-later"],"how_to_check":"- Check the installed Xibo version and confirm whether it is below `4.4.3`.\n- unknown","fix":"- Upgrade Xibo to `4.4.3` or later.","status":"open","published_at":"2026-10-28T16:17:07+00:00","first_seen_at":"2026-10-28T16:33:49+00:00","triaged_at":"2026-10-28T16:35:57+00:00","updated_at":"2026-10-28T16:35:57+00:00","category":"other","confidence":0.7,"triage":{"at":"2026-10-28T16:35:57Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Xibo to `4.4.3` or later.","reach":"network","title":"Xibo: any logged-in user can read other users' layout status","impact":"low","summary":"Xibo, an open source digital signage platform, is missing access-control checks on the layout status endpoint before version 4.4.3. An authenticated user with any role can read the status and metadata of layouts they have no view rights to.","category":"other","nicknames":[],"who_cares":["xibo","self-hosted","digital-signage"],"confidence":0.7,"needs_auth":"yes","worst_case":"Authenticated users read metadata of layouts they cannot view.","analyst_note":"","how_to_check":"- Check the installed Xibo version and confirm whether it is below `4.4.3`.\n- unknown","needs_analyst":false,"not_affected_if":["managed-hosting","version-4.4.3-or-later"],"who_is_affected":"Self-hosted Xibo CMS instances running a version before `4.4.3` where users have accounts. The exposure is limited to layout status and metadata, not layout content. Instances on managed hosting that already run `4.4.3` or later are not affected.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.00055,"input_tokens":3326,"output_tokens":434,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-50542':15A,18A '/layout/status':96C '4.4.3':47B,88C,131C 'access':37B,91C 'access-control':36B,90C 'allow':98C 'authent':49B,100C 'check':39B,93C 'content':78C 'control':38B,92C 'cve':13A,16A 'digit':20B,31B,72C 'digital-signag':19B 'display':83C 'endpoint':44B 'fix':128C 'get':95C 'host':25B 'id':97C 'includ':114C 'issu':126C 'layout':11A,42B,61B,113C,115C 'log':4A 'logged-in':3A 'manag':79C 'metadata':59B,110C 'miss':35B,89C 'open':29B,70C 'platform':33B,74C 'player':84C 'prior':86C 'privileg':104C 'read':8A,55B 'right':66B,124C 'role':53B 'self':24B 'self-host':23B 'signag':21B,32B,73C 'softwar':85C 'sourc':30B,71C 'status':12A,43B,57B,108C 'system':80C 'user':6A,10A,50B,101C,119C 'version':46B,130C 'view':65B,106C,123C 'web':77C 'window':82C 'xibo':1A,26B,27B,67C","nicknames":[],"mitigations":[],"who_affected":"Self-hosted Xibo CMS instances running a version before `4.4.3` where users have accounts. The exposure is limited to layout status and metadata, not layout content. Instances on managed hosting that already run `4.4.3` or later are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-28T16:17:07+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cvss_by":"security-advisories@github.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-50542","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50542","severity":null,"published_at":"2026-10-28T16:17:07+00:00","modified_at":"2026-10-28T16:17:07+00:00","first_seen_at":"2026-10-28T16:33:49+00:00","fetched_at":"2026-10-28T16:33:49+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}