CVE-2026-81780: Hashthemes Hash Form

Critical severity, CVSS 10.0. EPSS: 0.5% chance of exploitation in the next 30 days.

Unauthenticated Arbitrary File Upload in Hash Form <= 1.4.2 versions.

Affected products

• Hashthemes Hash Form: up to and including 1.4.2

Published 2026-08-31. Last modified 2026-09-01.