CVE-2026-56785: Flatpress

High severity, CVSS 8.2. EPSS: 0.4% chance of exploitation in the next 30 days.

FlatPress contains a stored cross-site scripting vulnerability in comment and contact forms where name, URL, and email fields are rendered without proper output encoding in Smarty templates. Attackers can inject arbitrary HTML and JavaScript through these fields to execute malicious scripts in browsers of viewers including administrators, or bypass URL scheme validation to inject javascript: or data: URIs.

Affected products

• Flatpress Flatpress: before 10be83c (fixed in 10be83c)

Published 2026-06-23. Last modified 2026-06-25.