CVE-2023-40755: Phpjabbers Callback Widget

Medium severity, CVSS 6.1. EPSS: 1.3% 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 Callback Widget v1.0.

Affected products

• Phpjabbers Callback Widget: version 1.0 only

Published 2023-08-28. Last modified 2026-06-17.