CVE-2023-36137

MEDIUM 6.1CVE-2023-36137 · Published 04/08/2023 · updated 17/06/2026

In short

CVE-2023-36137 is a MEDIUM (CVSS 6.1) vulnerability affecting class scheduling system (phpjabbers).
Chance of exploitation in the next 30 days (EPSS): 0.36%, higher than 29.4% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
class scheduling system phpjabbers	`= 1.0`	No fix yet

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

Running one of these products? Scan your site to see whether it exposes a vulnerable version.