{"id":"CVE-2026-14556","title":"HappyForms < 1.26.15 - Unauthenticated HTML Injection in Admin Notification Email via client_referer","summary":"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 s…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-116"],"product":"HappyForms","affected":["HappyForms < 1.26.15"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-21T10:11:32.422567Z"},"published":"2026-10-21","updated":"2026-10-21","sourceUpdated":"2026-10-21T10:14:54.939Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-14556","references":[{"url":"https://wpscan.com/vulnerability/7673862c-b37c-4c7e-af3f-c32cbd2deb23/"}],"tags":["cve.org"],"ingestedAt":"2026-10-21T09:46:15.399Z","slug":"CVE-2026-14556","body":"## Overview\n\nThe 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.\n\n## Affected\n\n- `HappyForms < 1.26.15`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}