{"identifier":"CVE-2026-91152","cve":{"id":"CVE-2026-91152","description":"The Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'evf_toast_type' parameter in all versions up to, and including, 3.6.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the sibling evf_toast parameter to decode successfully via atob(), but this is a trivially attacker-controlled prerequisite.","published":"2026-10-29T10:17:06.693000+00:00","modified":"2026-10-29T14:56:26.107000+00:00","status":"Deferred","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cvss_version":"3.1","affected":[],"weaknesses":["CWE-79"],"references":[{"url":"https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.6.1/assets/js/admin/admin.js#L22","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.6.1/assets/js/admin/admin.js#L91","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.6.1/includes/admin/class-evf-admin-assets.php#L376","source":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset/3704878/everest-forms/trunk/assets/js/admin/admin.js","source":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/8a017198-daf1-4779-a101-dc539e263e50?source=cve","source":"security@wordfence.com"}],"kev":null,"kev_checked":true,"metrics":{"cvssMetricV31":[{"source":"security@wordfence.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-10-29T10:32:08.899041Z","id":"CVE-2026-91152","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[],"source":"nvd","retrieved_at":"2026-10-29T17:34:29.638088+00:00","exploited":false,"kev_stale":false,"products":[],"priority":{"label":"Assess exposure and vendor guidance","reasons":["No higher-priority signal is available in the current stored evidence."]},"epss":{"probability":0.00346,"percentile":0.28174,"date":"2026-10-29","stale":false},"version_assessment":null},"news":[],"campaigns":[],"domains":[{"domain":"plugins.trac.wordpress.org","source_url":"https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.6.1/assets/js/admin/admin.js#L22","investigate_url":"https://investigate.aeglixmind.com/#plugins.trac.wordpress.org"},{"domain":"www.wordfence.com","source_url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/8a017198-daf1-4779-a101-dc539e263e50?source=cve","investigate_url":"https://investigate.aeglixmind.com/#www.wordfence.com"}],"arsenal_url":"https://arsenal.aeglixmind.com/?cve=CVE-2026-91152","catalog_url":"https://cves.aeglixmind.com/cve/CVE-2026-91152","research_url":"https://investigate.aeglixmind.com/research/cve/CVE-2026-91152","coverage":{"news_candidates_checked":0,"campaign_candidates_checked":0,"bounded":false,"notice":"Exact CVE mentions in stored public excerpts and reviewed campaign content only. A mention is not proof of exploitation, attribution or tool suitability. Missing matches do not establish absence."}}