What’s Vulnerable › Vulnerabilities

CVE-2026-14359: YITH WooCommerce Waitlist Premium <= 3.35.0 - Authenticated (Subscriber+) Privilege Escalation to Admin via wp_ajax_yith_wcwtl_add_user

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-09 · updated 2026-09-09
• Weakness: CWE-269

Description

The YITH WooCommerce Waitlist Premium plugin for WordPress is vulnerable to Privilege Escalation in versions up to, and including, 3.35.0. This is due to the add_user_in_waiting_list() function registered on the wp_ajax_yith_wcwtl_add_user action being missing both a capability check and a nonce verification, and using parse_str() + extract() to import attacker-controlled variables from $_POST['params'] that are then passed to wp_create_user() and $user->set_role(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to that of an administrator by creating a new user account and assigning it the administrator role.

Affected products

• YITH WooCommerce Waitlist Premium: through 3.35.0

References

• https://www.wordfence.com/threat-intel/vulnerabilities/id/48660afe-1e03-4bf5-b821-6538a4daf201?source=cve
• https://yithemes.com/

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