All vulnerabilities
CVE-2026-50543GHSA-737f-mfxg-jv9q

xibo-cms: Xibo: Missing Authorization on POST /displaygroup/criteria/{displayGroupId} Allows Arbitrary Scheduling Criteria Injection to Player Devices

xibosignage xibo-cms
Open in ThreatlineRecord JSON
CVSS
4.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published28 Oct 2026Updated 28 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.

Text from CVE List

Affected versions 1

  • xibo-cmsaffected: < 4.4.3CVE List

References 6