CVE-2018-12426: 3cx Live Chat

Critical severity, CVSS 9.8. EPSS: 5.1% chance of exploitation in the next 30 days.

The WP Live Chat Support Pro plugin before 8.0.07 for WordPress is vulnerable to unauthenticated Remote Code Execution due to client-side validation of allowed file types, as demonstrated by a v1/remote_upload request with a .php filename and the image/jpeg content type.

Affected products

• 3cx Live Chat: before 8.0.07 (fixed in 8.0.07)

Published 2018-07-02. Last modified 2026-06-17.