CVE-2026-14556: medium-severity vulnerability in HappyForms
HappyForms < 1.26.15 - Unauthenticated HTML Injection in Admin Notification Email via client_referer
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.4epss 0.2%
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:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Affected products
Unknown · HappyFormspublic PoCs found — 1
cve_referencewpscan.com/vulnerability/7673862c-b37c-4c7e-af3f-c32cbd2deb23/unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.