Medium severity · published Aug 31, 2026
CVE-2026-52730
Xibo CMS Missing Authorization in Module::settingsForm due to PHP operator precedence
4.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
XI
xibo-cms · xibosignage
< 4.4.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-52730
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-52730
github.com
https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-6h64-j36j-h2v2
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