{"id":"CVE-2026-12215","title":"The OTP Login & Register Woocommerce plugin for WordPress is vulnerable to Authentication Bypass via OTP Brute Force in all versions up to, and including, 2.7.2","summary":"The OTP Login & Register Woocommerce plugin for WordPress is vulnerable to Authentication Bypass via OTP Brute Force in all versions up to, and including, 2.7.2. The vulnerability exists because the OTP rate-limit attempt counter in `pro…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","cwe":["CWE-434"],"vendor":"xootix","product":"OTP Login & Register Woocommerce","affected":["otp_login_register_woocommerce <= 2.7.2"],"published":"2026-09-11","updated":"2026-09-11","sourceUpdated":"2026-09-11T14:17:25.320","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-12215","references":[{"url":"https://plugins.trac.wordpress.org/browser/mobile-login-woocommerce/tags/2.7.2/includes/class-xoo-ml-geolocation.php#L24","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/mobile-login-woocommerce/tags/2.7.2/includes/class-xoo-ml-otp-handler.php#L155","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/mobile-login-woocommerce/tags/2.7.2/includes/class-xoo-ml-otp-handler.php#L24","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/mobile-login-woocommerce/tags/2.7.2/includes/class-xoo-ml-verification.php#L472","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/browser/mobile-login-woocommerce/tags/2.7.2/includes/class-xoo-ml-verification.php#L84","label":"security@wordfence.com"},{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3639216%40mobile-login-woocommerce%2Ftrunk%2Fincludes%2Fclass-xoo-ml-otp-handler.php&old=3419316%40mobile-login-woocommerce%2Ftrunk%2Fincludes%2Fclass-xoo-ml-otp-handler.php&sfp_email=&sfph_mail=","label":"security@wordfence.com"},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/4bd4b379-6d7d-4cfe-bb16-a931c5d68d02?source=cve","label":"security@wordfence.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-11T13:09:22.330389Z"},"epss":0.00321,"epssPercentile":0.22358,"ingestedAt":"2026-09-11T11:32:42.776Z","slug":"CVE-2026-12215","body":"## Overview\n\nThe OTP Login & Register Woocommerce plugin for WordPress is vulnerable to Authentication Bypass via OTP Brute Force in all versions up to, and including, 2.7.2. The vulnerability exists because the OTP rate-limit attempt counter in `process_otp_form` is keyed exclusively on the attacker-controlled `xoo_ml_user_ip_data` cookie's `ip_address` field, allowing unlimited counter resets by simply rotating the cookie, while the OTP itself is generated with PHP's non-cryptographic `rand()` function over a default space of only 9,000 possible values (1000–9999), and both the OTP issuance endpoint (`xoo_ml_login_with_otp`) and verification endpoint (`xoo_ml_otp_form_submit`) are registered as unauthenticated `wp_ajax_nopriv` actions with no nonce or capability checks. This makes it possible for unauthenticated attackers to brute-force the OTP for any registered account and obtain a full WordPress authentication session — including for administrator accounts — via `wp_set_auth_cookie()` in `login_user_with_otp()`. Exploitation requires the attacker to know the target user's registered phone number, which is used to trigger OTP issuance via the unauthenticated `xoo_ml_login_with_otp` endpoint.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}