CVE-2023-4110: Phpjabbers Availability Booking Calendar

Medium severity, CVSS 6.1. EPSS: 1.8% chance of exploitation in the next 30 days.

A vulnerability has been found in PHP Jabbers Availability Booking Calendar 5.0 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /index.php. The manipulation of the argument session_id leads to cross site scripting. The attack can be launched remotely. The identifier VDB-235957 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

• Phpjabbers Availability Booking Calendar: version 5.0 only

Published 2023-08-03. Last modified 2026-06-17.