CVE-2026-14556 — HappyForms < 1.26.15 - Unauthenticated HTML Injection in Admin Notification Email via client_referer
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 unauthen…
Published: 2026-10-21 · CVSS: 5.4 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7