CVE-2023-36137: Phpjabbers Class Scheduling System

Medium severity, CVSS 6.1. EPSS: 0.4% chance of exploitation in the next 30 days.

There is a Cross Site Scripting (XSS) vulnerability in the "theme" parameter of preview.php in PHPJabbers Class Scheduling System 1.0.

Affected products

• Phpjabbers Class Scheduling System: version 1.0 only

Published 2023-08-04. Last modified 2026-06-17.