medium · CVSS v3 5.4 · EPSS 0.00155
CVE-2026-14556
The HappyForms WordPress plugin before 1.26.15 does not sanitise or escape a user-controlled referral value before embed…
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.
Scores
- Severity
- medium
- CVSS v2
- 6.4
- CVSS v3
- 5.4
- CVSS v4
- —
- EPSS
- 0.00155