{"id":"CVE-2026-3896","aliases":["EUVD-2026-32102","GHSA-6jw7-72vv-cg3r"],"status":"published","title":"Livemesh SiteOrigin Widgets \u003c= 3.9.2 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting","description":"The Livemesh SiteOrigin Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `lsow_admin_ajax` AJAX action in all versions up to, and including, 3.9.2 due to missing authorization checks and insufficient input sanitization. The AJAX handler verifies a nonce but does not check user capabilities. This makes it possible for authenticated attackers with Subscriber-level access and above to modify plugin settings and inject malicious scripts that execute when administrators access the plugin settings page or when any user visits the frontend.","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":"2026-11-09","score":0.00223,"percentile":0.12968,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-862"],"published":"2026-05-27T06:46:17Z","modified":"2026-06-17T10:44:23Z","products":[{"vendor":"livemesh","product":"livemesh siteorigin widgets"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/a1510984-571b-49ce-9e10-129e2a1aca7b?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/livemesh-siteorigin-widgets/tags/3.9.2/admin/admin-ajax.php#L65"},{"url":"https://plugins.trac.wordpress.org/browser/livemesh-siteorigin-widgets/tags/3.9.2/includes/helper-functions.php#L235"},{"url":"https://plugins.trac.wordpress.org/browser/livemesh-siteorigin-widgets/tags/3.9.2/admin/views/settings.php#L107"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-3896"},{"url":"https://github.com/advisories/GHSA-6jw7-72vv-cg3r"}],"sources":{"cve":[{"id":"CVE-2026-3896","title":"Livemesh SiteOrigin Widgets \u003c= 3.9.2 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting","description":"The Livemesh SiteOrigin Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `lsow_admin_ajax` AJAX action in all versions up to, and including, 3.9.2 due to missing authorization checks and insufficient input sanitization. The AJAX handler verifies a nonce but does not check user capabilities. This makes it possible for authenticated attackers with Subscriber-level access and above to modify plugin settings and inject malicious scripts that execute when administrators access the plugin settings page or when any user visits the frontend.","status":"published","published":"2026-05-27T06:46:17.045Z","modified":"2026-05-27T10:29:55.291Z","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-862"],"updated_at":"2026-11-02T13:49:09.229322Z"}],"euvd":[{"id":"EUVD-2026-32102","description":"The Livemesh SiteOrigin Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `lsow_admin_ajax` AJAX action in all versions up to, and including, 3.9.2 due to missing authorization checks and insufficient input sanitization. The AJAX handler verifies a nonce but does not check user capabilities. This makes it possible for authenticated attackers with Subscriber-level access and above to modify plugin settings and inject malicious scripts that execute when administrators access the plugin settings page or when any user visits the frontend.","status":"published","published":"2026-05-27T06:46:17Z","modified":"2026-05-27T10:29:55Z","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":"2026-11-02T18:21:06.054612Z"}],"ghsa":[{"id":"GHSA-6jw7-72vv-cg3r","title":"The Livemesh SiteOrigin Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting...","description":"The Livemesh SiteOrigin Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `lsow_admin_ajax` AJAX action in all versions up to, and including, 3.9.2 due to missing authorization checks and insufficient input sanitization. The AJAX handler verifies a nonce but does not check user capabilities. This makes it possible for authenticated attackers with Subscriber-level access and above to modify plugin settings and inject malicious scripts that execute when administrators access the plugin settings page or when any user visits the frontend.","status":"published","published":"2026-05-27T09:31:14Z","modified":"2026-05-27T09:31:22Z","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-862"],"updated_at":"2026-11-02T15:08:19.474205Z"}],"nvd":[{"id":"CVE-2026-3896","description":"The Livemesh SiteOrigin Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `lsow_admin_ajax` AJAX action in all versions up to, and including, 3.9.2 due to missing authorization checks and insufficient input sanitization. The AJAX handler verifies a nonce but does not check user capabilities. This makes it possible for authenticated attackers with Subscriber-level access and above to modify plugin settings and inject malicious scripts that execute when administrators access the plugin settings page or when any user visits the frontend.","status":"published","published":"2026-05-27T08:16:40.95Z","modified":"2026-06-17T10:44:23.67Z","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-862"],"updated_at":"2026-11-02T14:12:20.511562Z"}]}}