CVE-2026-14556
MEDIUM
NVD
CVSS Score
5.4
Severity
MEDIUM
Published
Oct 21, 2026
Vendor
unknown
Description
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.