{"id":"CVE-2026-102173","revision":"280046496b114eb3915ca31f7eabc671","records":[{"revision":"280046496b114eb3915ca31f7eabc671","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-102173","aliases":[],"title":"Kirki – Freeform Page Builder, Website Builder & Customizer <= 6.3.1 - Unauthenticated Stored Cross-Site Scripting via Registration Metadata","description":"The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via registration metadata in all versions up to, and including, 6.3.1 This is due to insufficient escaping in `ExceptionalElements::image_element()`, which concatenates a user-meta value straight into an `<img src=\"…\">` attribute. This makes it possible for unauthenticated attackers to inject arbitrary web scripts that execute whenever a user accesses a page rendering a Kirki users collection whose image element is bound to one of the nine registration meta fields. Requires public user registration to be enabled and a published page carrying a `kirki-register` element, which prints the required element nonce into the public markup.","state":0,"publishedAt":"2026-10-07T05:30:40.929+00:00","modifiedAt":"2026-10-07T17:05:30.285+00:00","affected":[{"ecosystem":"Vendor product","name":"Kirki – Freeform Page Builder, Website Builder & Customizer","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"themeum\",\n                    \"product\": \"Kirki – Freeform Page Builder, Website Builder & Customizer\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"6.3.1\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","score":7.2,"severity":"HIGH"}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/368001e9-3806-41d5-902e-0facf7fb31ff?source=cve","https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/ExceptionalElements.php#L1184","https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/ExceptionalElements.php#L1079","https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/HelperFunctions.php#L1151","https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/ComponentLibrary/controller/CompLibFormHandler.php#L361","https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/ComponentLibrary/controller/CompLibFormHandler.php#L389","https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/ComponentLibrary/controller/CompLibFormHandler.php#L76","https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/ComponentLibrary/controller/ElementGenerator.php#L259","https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/Utils.php#L308","https://plugins.trac.wordpress.org/changeset?reponame=&new=3718900%40kirki%2Ftags%2F6.3.2&old=3697265%40kirki%2Ftags%2F6.3.1","https://plugins.trac.wordpress.org/changeset/3718900/kirki/trunk/includes/Frontend/Preview/ExceptionalElements.php"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-102173","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-102173","identifiers":["CVE-2026-102173"]},"retained":false,"historicalAffected":[]}],"coverage":[]}