CVE-2026-14556
CVE-2026-14556 · HappyForms < 1.26.15 - Unauthenticated HTML Injection in Admin Notification Email via client_referer
This page contains facts from public vulnerability sources. Check the original advisory before updating.
The HappyForms WordPress plugin before 1.26.15 does not sanitise or escape a user-controlled referral value before embedding it in the form notification email, allowing unauthenticated attackers to inject arbitrary HTML into the emails site administrators receive.
CVSS 5.4 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Affected products and versions
happyforms
- Versions
- ≥ 0, < 1.26.15: Affected (semver)
Update to 1.26.15