All vulnerabilities
CVE-2026-50539GHSA-p4pg-v57g-7jf6

xibo-cms: Xibo: Missing Object-Level Authorization on /notification/export/{id} Allows Authenticated Users to Download Arbitrary Attachments

xibosignage xibo-cms
Open in ThreatlineRecord JSON
CVSS
6.5Medium
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 object-level authorization on /notification/export/{id} allows an authenticated user to download attachments from any notification, including notifications created by administrators, by iterating over sequential notification IDs. Exploitation requires access to the Notification Centre to view past notifications, a privilege granted to non-administrators as standard. This issue is fixed in version 4.4.3.

Text from CVE List

Affected versions 1

  • xibo-cmsaffected: < 4.4.3CVE List

References 6