GHSA-H8H9-7P7R-7RPQ
Vulnerability from github – Published: 2026-10-02 06:30 – Updated: 2026-10-02 06:30The Super Forms – Drag & Drop Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3.316. This is due to the Register & Login add-on's before_email_success_msg() function, in its register_login_action='update' flow, trusting an attacker-supplied user_id value and passing it to wp_update_user() without any ownership or capability check. Because the super_save_form AJAX action also enforces no capability check, any authenticated user with Subscriber-level access and above can create the required malicious form (register_login_action='update' with register_login_user_id_update='true') and then submit it with user_id set to an administrator's ID along with a new user_pass/user_email. This makes it possible for authenticated attackers with Subscriber-level access and above to overwrite the credentials of arbitrary existing accounts — including administrators — resulting in account takeover and full site compromise.
{
"affected": [],
"aliases": [
"CVE-2026-15897"
],
"database_specific": {
"cwe_ids": [
"CWE-269"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-10-02T06:16:41Z",
"severity": "HIGH"
},
"details": "The Super Forms \u2013 Drag \u0026 Drop Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 6.3.316. This is due to the Register \u0026 Login add-on\u0027s before_email_success_msg() function, in its register_login_action=\u0027update\u0027 flow, trusting an attacker-supplied user_id value and passing it to wp_update_user() without any ownership or capability check. Because the super_save_form AJAX action also enforces no capability check, any authenticated user with Subscriber-level access and above can create the required malicious form (register_login_action=\u0027update\u0027 with register_login_user_id_update=\u0027true\u0027) and then submit it with user_id set to an administrator\u0027s ID along with a new user_pass/user_email. This makes it possible for authenticated attackers with Subscriber-level access and above to overwrite the credentials of arbitrary existing accounts \u2014 including administrators \u2014 resulting in account takeover and full site compromise.",
"id": "GHSA-h8h9-7p7r-7rpq",
"modified": "2026-10-02T06:30:55Z",
"published": "2026-10-02T06:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15897"
},
{
"type": "WEB",
"url": "https://github.com/RensTillmann/super-forms/pull/205"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/94297481-9ebb-42cb-9362-be8bc52b126f?source=cve"
}
],
"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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