GHSA-JG5J-77HP-VQMP
Vulnerability from github – Published: 2026-09-09 09:32 – Updated: 2026-09-09 09:32The 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": [],
"aliases": [
"CVE-2026-14359"
],
"database_specific": {
"cwe_ids": [
"CWE-269"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-09T09:17:10Z",
"severity": "HIGH"
},
"details": "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[\u0027params\u0027] that are then passed to wp_create_user() and $user-\u003eset_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.",
"id": "GHSA-jg5j-77hp-vqmp",
"modified": "2026-09-09T09:32:59Z",
"published": "2026-09-09T09:32:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14359"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/48660afe-1e03-4bf5-b821-6538a4daf201?source=cve"
},
{
"type": "WEB",
"url": "https://yithemes.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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