CVE-2026-39728: Instapagedev Instapage Plugin

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

Unauthenticated Server Side Request Forgery (SSRF) in Instapage Plugin <= 3.7.2 versions.

Affected products

• Instapagedev Instapage Plugin: up to and including 3.7.2

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