6.5
MediumCVSS 3.1 · from GitHub_M
CVE-2026-50539
Xibo: Missing Object-Level Authorization on /notification/export/{id} Allows Authenticated Users to Download Arbitrary Attachments
xibo-cms · Missing authorization · CWE-862Affectedxibo-cms
FixNo fix listed yet.
PublishedOct 28, 15:31 · GitHub_M
ScoredOct 28 · 6.5 · GitHub_M
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:05 UTC
What we know
No known exploitation. CISA KEV, checked 22:05 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker needs network access and an account. CVSS: network, low privileges.
A successful attack can read data. CVSS impact.
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.
From GitHub_M
Affected and fixed versions
ProductAffectedFixed inxibo-cms< 4.4.3–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known