{"id":"CVE-2026-102291","aliases":["EUVD-2026-96287","GHSA-v9xh-p885-r83g"],"status":"published","title":"Kirki – Freeform Page Builder, Website Builder \u0026 Customizer \u003c= 6.3.1 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'display_name'","description":"The Kirki – Freeform Page Builder, Website Builder \u0026 Customizer plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 6.3.1 This is due to the plugin substituting a user's `display_name` into the composed page markup unfiltered and then running the whole result through `do_shortcode()` in `TheFrontend::replace_content()`. Because `display_name` is writable by any user on their own account through the core profile form, this makes it possible for authenticated attackers with Subscriber-level access and above to execute arbitrary shortcodes. Where the page is a users collection — an ordinary team or member-directory page — the shortcode runs in the request of every visitor, including unauthenticated ones. Requires a published page with a Kirki element whose dynamic content is bound to the `display_name` user field.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00304,"percentile":0.23498,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74"],"published":"2026-10-10T07:41:47Z","modified":"2026-10-13T13:30:21Z","products":[{"vendor":"themeum","product":"kirki – freeform page builder, website builder \u0026 customizer"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/bed93040-a843-417e-89b4-5ab3cba788aa?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/TheFrontend.php#L144"},{"url":"https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/Utils.php#L408"},{"url":"https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/Utils.php#L308"},{"url":"https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Frontend/Preview/Utils.php#L334"},{"url":"https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/HelperFunctions.php#L1117"},{"url":"https://plugins.trac.wordpress.org/browser/kirki/tags/6.3.1/includes/Manager/PluginShortcode.php#L40"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3718900%40kirki%2Ftags%2F6.3.2\u0026old=3697265%40kirki%2Ftags%2F6.3.1"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102291"},{"url":"https://github.com/advisories/GHSA-v9xh-p885-r83g"}],"sources":{"cve":[{"id":"CVE-2026-102291","title":"Kirki – Freeform Page Builder, Website Builder \u0026 Customizer \u003c= 6.3.1 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'display_name'","description":"The Kirki – Freeform Page Builder, Website Builder \u0026 Customizer plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 6.3.1 This is due to the plugin substituting a user's `display_name` into the composed page markup unfiltered and then running the whole result through `do_shortcode()` in `TheFrontend::replace_content()`. Because `display_name` is writable by any user on their own account through the core profile form, this makes it possible for authenticated attackers with Subscriber-level access and above to execute arbitrary shortcodes. Where the page is a users collection — an ordinary team or member-directory page — the shortcode runs in the request of every visitor, including unauthenticated ones. Requires a published page with a Kirki element whose dynamic content is bound to the `display_name` user field.","status":"published","published":"2026-10-10T07:41:47.748Z","modified":"2026-10-11T16:55:15.382Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T13:38:54.394896Z"}],"euvd":[{"id":"EUVD-2026-96287","description":"The Kirki – Freeform Page Builder, Website Builder \u0026 Customizer plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 6.3.1 This is due to the plugin substituting a user's `display_name` into the composed page markup unfiltered and then running the whole result through `do_shortcode()` in `TheFrontend::replace_content()`. Because `display_name` is writable by any user on their own account through the core profile form, this makes it possible for authenticated attackers with Subscriber-level access and above to execute arbitrary shortcodes. Where the page is a users collection — an ordinary team or member-directory page — the shortcode runs in the request of every visitor, including unauthenticated ones. Requires a published page with a Kirki element whose dynamic content is bound to the `display_name` user field.","status":"published","published":"2026-10-10T07:41:47Z","modified":"2026-10-11T16:55:15Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:27:22.526044Z"}],"ghsa":[{"id":"GHSA-v9xh-p885-r83g","title":"The Kirki – Freeform Page Builder, Website Builder \u0026 Customizer plugin for WordPress is...","description":"The Kirki – Freeform Page Builder, Website Builder \u0026 Customizer plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 6.3.1 This is due to the plugin substituting a user's `display_name` into the composed page markup unfiltered and then running the whole result through `do_shortcode()` in `TheFrontend::replace_content()`. Because `display_name` is writable by any user on their own account through the core profile form, this makes it possible for authenticated attackers with Subscriber-level access and above to execute arbitrary shortcodes. Where the page is a users collection — an ordinary team or member-directory page — the shortcode runs in the request of every visitor, including unauthenticated ones. Requires a published page with a Kirki element whose dynamic content is bound to the `display_name` user field.","status":"published","published":"2026-10-10T09:30:28Z","modified":"2026-10-10T09:30:36Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T15:13:01.926366Z"}],"nvd":[{"id":"CVE-2026-102291","description":"The Kirki – Freeform Page Builder, Website Builder \u0026 Customizer plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 6.3.1 This is due to the plugin substituting a user's `display_name` into the composed page markup unfiltered and then running the whole result through `do_shortcode()` in `TheFrontend::replace_content()`. Because `display_name` is writable by any user on their own account through the core profile form, this makes it possible for authenticated attackers with Subscriber-level access and above to execute arbitrary shortcodes. Where the page is a users collection — an ordinary team or member-directory page — the shortcode runs in the request of every visitor, including unauthenticated ones. Requires a published page with a Kirki element whose dynamic content is bound to the `display_name` user field.","status":"published","published":"2026-10-10T08:17:03.49Z","modified":"2026-10-13T13:30:21.62Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:12:55.473789Z"}]}}