{"id":"CVE-2026-107645","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-107645","summary":"The Blocksy Companion plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 2.1.58 This is due to the implement_user_registration() AJAX handler…","details":"The Blocksy Companion plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 2.1.58 This is due to the implement_user_registration() AJAX handler explicitly disabling Dokan's vendor-registration nonce check (via add_filter('dokan_register_nonce_check', '__return_false')) and then trusting an attacker-supplied $_POST['role'] value when invoking wc_create_new_customer() and wc_set_customer_auth_cookie(). This makes it possible for unauthenticated attackers to elevate their privileges to a Dokan 'seller' (vendor) account — including sites where the Dokan vendor signup is explicitly turned off — and to be auto-authenticated into that account, which grants publishing capabilities beyond those of a normal customer.","published":"2026-10-10T04:18:10.090","modified":"2026-10-10T04:18:10.090","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.58/framework/features/account-auth.php#L181"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.58/framework/features/account-auth.php#L24"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/browser/blocksy-companion/tags/2.1.58/framework/features/account-auth.php#L241"},{"type":"WEB","url":"https://plugins.trac.wordpress.org/changeset/3735192/blocksy-companion/tags/2.1.59/framework/features/account-auth.php?old=3723693&old_path=blocksy-companion%2Ftags%2F2.1.58%2Fframework%2Ffeatures%2Faccount-auth.php"},{"type":"WEB","url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/7757f41d-c1f1-4df1-8048-b1c78a897548?source=cve"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-10T04:18:10.090"}}