CVE-2021-4175: Livehelperchat Live Helper Chat

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

livehelperchat is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected products

• Livehelperchat Live Helper Chat: before 3.91 (fixed in 3.91)

Published 2021-12-29. Last modified 2026-06-17.