CVE-2021-34190: Issabel Pbx

Medium severity, CVSS 4.8. EPSS: 0.6% chance of exploitation in the next 30 days.

A stored cross site scripting (XSS) vulnerability in index.php?menu=billing_rates of Issabel PBX version 4 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the "Name" or "Prefix" fields under the "Create New Rate" module.

Affected products

• Issabel Pbx: version 4 only

Published 2021-07-06. Last modified 2026-06-17.