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CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2026-14556

HappyForms < 1.26.15 - Unauthenticated HTML Injection in Admin Notification Email via client_referer

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Unknown HappyForms

Default version status: unaffected

  • 0 to < 1.26.15affected

References