{"id":"CVE-2026-14556","aliases":["EUVD-2026-107147","GHSA-qwq5-hm76-r6p9"],"status":"published","title":"HappyForms \u003c 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.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00202,"percentile":0.10288,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-116"],"published":"2026-10-21T08:38:59Z","modified":"2026-10-21T18:37:38Z","products":[{"vendor":"unknown","product":"happyforms"}],"references":[{"url":"https://wpscan.com/vulnerability/7673862c-b37c-4c7e-af3f-c32cbd2deb23/","tags":["exploit","vdb-entry","technical-description"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14556"},{"url":"https://wpscan.com/vulnerability/7673862c-b37c-4c7e-af3f-c32cbd2deb23"},{"url":"https://github.com/advisories/GHSA-qwq5-hm76-r6p9"}],"sources":{"cve":[{"id":"CVE-2026-14556","title":"HappyForms \u003c 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.","status":"published","published":"2026-10-21T08:38:59.379Z","modified":"2026-10-21T10:14:54.939Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T13:38:43.260938Z"}],"euvd":[{"id":"EUVD-2026-107147","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.","status":"published","published":"2026-10-21T08:38:59Z","modified":"2026-10-21T10:14:54Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:59:40.152045Z"}],"ghsa":[{"id":"GHSA-qwq5-hm76-r6p9","title":"The HappyForms WordPress plugin before 1.26.15 does not sanitise or escape a user-controlled...","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.","status":"published","published":"2026-10-21T09:30:30Z","modified":"2026-10-21T12:31:07Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T15:14:09.697532Z"}],"nvd":[{"id":"CVE-2026-14556","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.","status":"published","published":"2026-10-21T09:17:07.173Z","modified":"2026-10-21T18:37:38.7Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-116"],"updated_at":"2026-11-02T14:13:02.045979Z"}]}}