CVE-2026-8172: Unknown Simple Basic Contact Form

High severity, CVSS 7.1. EPSS: 0.3% chance of exploitation in the next 30 days.

The Simple Basic Contact Form WordPress plugin through 20250114 does not escape user-supplied input before reflecting it into the contact form output on validation errors, leading to a Reflected Cross-Site Scripting vulnerability that unauthenticated attackers can exploit against site visitors via a crafted link or cross-site form submission.

Affected products

• Unknown Simple Basic Contact Form: up to and including 20250114

Published 2026-06-23. Last modified 2026-06-23.