CVE-2026-66643: Wronganswersonly Wufoo Shortcode

Medium severity, CVSS 6.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Contributor Cross Site Scripting (XSS) in Wufoo Shortcode <= 1.55 versions.

Affected products

• Wronganswersonly Wufoo Shortcode: up to and including 1.55

Published 2026-08-18. Last modified 2026-08-20.