{"id":"CVE-2026-14472","aliases":["EUVD-2026-82755","GHSA-vvvj-jr6q-4x2q"],"status":"published","title":"Kubio AI Page Builder \u003c= 2.8.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via kubio/copyright Block Content","description":"The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via kubio/copyright Block Content in all versions up to, and including, 2.8.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This bypasses both the WordPress core kses-on-save filter and the plugin's own wp_kses_post() call, because entity-encoded script tags are treated as inert text by kses but are decoded into live HTML by the subsequent html_entity_decode() call in CopyrightBlock::render_template().","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00356,"percentile":0.29703,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-09-18T07:40:02Z","modified":"2026-09-18T13:23:37Z","products":[{"vendor":"extendthemes","product":"kubio ai page builder"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/89392f97-58c5-48db-b835-013ef493ca5e?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/build/block-library/blocks/copyright/index.php#L38"},{"url":"https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/build/block-library/blocks/copyright/index.php#L22"},{"url":"https://plugins.trac.wordpress.org/browser/kubio/tags/2.8.2/lib/src/Core/Blocks/BlockBase.php#L413"},{"url":"https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3616537%40kubio\u0026new=3616537%40kubio"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14472"},{"url":"https://github.com/advisories/GHSA-vvvj-jr6q-4x2q"}],"sources":{"cve":[{"id":"CVE-2026-14472","title":"Kubio AI Page Builder \u003c= 2.8.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via kubio/copyright Block Content","description":"The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via kubio/copyright Block Content in all versions up to, and including, 2.8.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This bypasses both the WordPress core kses-on-save filter and the plugin's own wp_kses_post() call, because entity-encoded script tags are treated as inert text by kses but are decoded into live HTML by the subsequent html_entity_decode() call in CopyrightBlock::render_template().","status":"published","published":"2026-09-18T07:40:02.056Z","modified":"2026-09-18T11:29:01.464Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:38:32.13011Z"}],"euvd":[{"id":"EUVD-2026-82755","description":"The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via kubio/copyright Block Content in all versions up to, and including, 2.8.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This bypasses both the WordPress core kses-on-save filter and the plugin's own wp_kses_post() call, because entity-encoded script tags are treated as inert text by kses but are decoded into live HTML by the subsequent html_entity_decode() call in CopyrightBlock::render_template().","status":"published","published":"2026-09-18T07:40:02Z","modified":"2026-09-18T11:29:01Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:28:09.240281Z"}],"ghsa":[{"id":"GHSA-vvvj-jr6q-4x2q","title":"The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via...","description":"The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via kubio/copyright Block Content in all versions up to, and including, 2.8.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This bypasses both the WordPress core kses-on-save filter and the plugin's own wp_kses_post() call, because entity-encoded script tags are treated as inert text by kses but are decoded into live HTML by the subsequent html_entity_decode() call in CopyrightBlock::render_template().","status":"published","published":"2026-09-18T09:31:07Z","modified":"2026-09-18T09:31:14Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:12:09.483713Z"}],"nvd":[{"id":"CVE-2026-14472","description":"The Kubio AI Page Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via kubio/copyright Block Content in all versions up to, and including, 2.8.4 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This bypasses both the WordPress core kses-on-save filter and the plugin's own wp_kses_post() call, because entity-encoded script tags are treated as inert text by kses but are decoded into live HTML by the subsequent html_entity_decode() call in CopyrightBlock::render_template().","status":"published","published":"2026-09-18T08:16:59.567Z","modified":"2026-09-18T13:23:37.403Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:49.70655Z"}]}}