Auth bypass in Xibosignage Xibo-Cms
CVE-2026-50542
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.
Vulnerability class: Broken Access Control
Published .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Xibosignage Xibo-Cms — versions < 4.4.3
Weakness classification (CWE)
References
- github.com/xibosignage/xibo-cms/security/advisories/GHSA-wj8r-32gf-6f5f
- github.com/xibosignage/xibo-cms/pull/3481
- github.com/xibosignage/xibo-cms/commit/610f0ecbfdf7667d67c0dbe4aebc85245040d952
- github.com/xibosignage/xibo-cms/commit/97e878f13615db2a448fdcff22895a19005f5d3a
- github.com/xibosignage/xibo-cms/releases/tag/4.4.3
- github.com/xibosignage/xibo-cms/releases/tag/4.5.0-beta
Frequently asked questions
- What is CVE-2026-50542?
- CVE-2026-50542 is a medium-severity vulnerability in Xibosignage Xibo-Cms, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-10-28.
- How severe is CVE-2026-50542?
- Medium severity. CVSS v3 base score is 5.4 out of 10.