{"id":"CVE-2026-12430","aliases":["EUVD-2026-37989","GHSA-3w47-vpxj-86c8"],"status":"published","title":"Blocksy Companion \u003c= 2.1.45 - Authenticated (Editor+) Stored Cross-Site Scripting via 'product_description' Parameter","description":"The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.1.45 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","severity":{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00335,"percentile":0.27035,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2026-06-19T04:31:35Z","modified":"2026-06-22T16:43:14Z","products":[{"vendor":"creativethemeshq","product":"blocksy companion"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/fac4ae61-cfc6-4efc-9f57-58fa39e00f07?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.45/framework/extensions/product-reviews/views/single-top.php#L232"},{"url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.45/framework/extensions/product-reviews/extension.php#L709"},{"url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.45/framework/extensions/product-reviews/views/single-top.php#L206"},{"url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/views/single-top.php#L232"},{"url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/extension.php#L709"},{"url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.41/framework/extensions/product-reviews/views/single-top.php#L206"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3576066%40blocksy-companion\u0026new=3576066%40blocksy-companion\u0026sfp_email=\u0026sfph_mail="},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12430"},{"url":"https://github.com/advisories/GHSA-3w47-vpxj-86c8"}],"sources":{"cve":[{"id":"CVE-2026-12430","title":"Blocksy Companion \u003c= 2.1.45 - Authenticated (Editor+) Stored Cross-Site Scripting via 'product_description' Parameter","description":"The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.1.45 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-06-19T04:31:35.196Z","modified":"2026-06-22T14:56:10.778Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:19:47.998488Z"}],"euvd":[{"id":"EUVD-2026-37989","description":"The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.1.45 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-06-19T04:31:35Z","modified":"2026-06-22T14:56:10Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:20:34.745289Z"}],"ghsa":[{"id":"GHSA-3w47-vpxj-86c8","title":"The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin...","description":"The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.1.45 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-06-19T06:31:56Z","modified":"2026-06-19T06:32:02Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:08:54.452189Z"}],"nvd":[{"id":"CVE-2026-12430","description":"The Blocksy Companion plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 2.1.45 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with editor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.","status":"published","published":"2026-06-19T06:17:01.513Z","modified":"2026-06-22T16:43:14.45Z","cvss":[{"version":"3.1","score":4.4,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:24.912854Z"}]}}