CVE-2026-1261: Wpmet Metform Pro

High severity, CVSS 7.2. EPSS: 0.3% chance of exploitation in the next 30 days.

The MetForm Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Quiz feature in all versions up to, and including, 3.9.6 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Wpmet Metform Pro: up to and including 3.9.6

Published 2026-03-10. Last modified 2026-06-17.