CVE-2017-18489: Mediaburst Contact Form 7 - Clockwork Sms

Medium severity, CVSS 6.1. EPSS: 0.9% chance of exploitation in the next 30 days.

The contact-form-7-sms-addon plugin before 2.4.0 for WordPress has XSS.

Affected products

• Mediaburst Contact Form 7 - Clockwork Sms: before 2.4.0 (fixed in 2.4.0)

Published 2019-08-13. Last modified 2026-06-17.