CVE-2021-43695: Issabel Pbx

Medium severity, CVSS 6.1. EPSS: 0.6% chance of exploitation in the next 30 days.

issabelPBX version 2.11 is affected by a Cross Site Scripting (XSS) vulnerability. In file page.backup_restore.php, the exit function will terminate the script and print the message to the user. The message will contain $_REQUEST without sanitization, then there is a XSS vulnerability.

Affected products

Published 2021-11-29. Last modified 2026-06-17.