CVE-2026-52730 Xibo CMS Missing Authorization in Module::settingsForm due to PHP operator precedence
Authorized users with Module View access can view super admin-restricted module settings and leak full module entities due to missing authorization checks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-52730?
CVE-2026-52730 is a medium-severity missing authorization vulnerability in xibosignage xibo-cms, published on 31 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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 in Module::settingsForm allows to view (not change) super admin-restricted module settings and leak the full module entity. Exploitation of the vulnerability is possible on behalf of an authorized user who has access to the Module View feature, which are not granted to non-admins as standard. Users should upgrade to version 4.4.3 which fixes this issue. Upgrading to a fixed version is necessary to remediate. Users unable to upgrade should revoke such privileges from users they do not trust.
Weakness: CWE-862
Which versions are affected by CVE-2026-52730?
How do I fix CVE-2026-52730?
No fix has been published for CVE-2026-52730 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-52730 being exploited?
There is no known exploitation of CVE-2026-52730 in the wild and no public exploit code.
Sources
Also known as GHSA-6h64-j36j-h2v2.