CVE-2026-50543 Xibo is an open source digital signage platform with a web content management system and Windows display player software.
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-50543?
CVE-2026-50543 is a medium-severity vulnerability in xibosignage xibo-cms, published on 28 Oct 2026.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-50543?
How do I fix CVE-2026-50543?
No fix has been published for CVE-2026-50543 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-50543 being exploited?
There is no known exploitation of CVE-2026-50543 in the wild and no public exploit code.
Sources
Also known as GHSA-737f-mfxg-jv9q.