Cross-site scripting in baserCMS - CVE-2026-93464
Published: September 29, 2026
Vulnerability identifier: #VU152769
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2026-93464
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary script in visitors' browsers.
The vulnerability exists due to improper neutralization of script input in the custom content description and CustomContentHelper::description() when a visitor views a custom content list page. A remote user can store a script in a custom content description to execute arbitrary script in visitors' browsers.
Affected software
baserCMS
How to mitigate CVE-2026-93464
Install security update from vendor's website.
baserCMS - addressed in versions 5.3.1, 5.4.1