Privilege escalation in Registration Form For Woocommerce
CVE-2026-81431
The Registration Form for WooCommerce WordPress plugin before 1.1.3 does not validate that the form referenced during registration is a legitimate registration form, reading the permitted-role allow-list from an arbitrary attacker-controlled post instead. A user able to create a post (Contributor and above) can therefore register a new account with an arbitrary role, including Administrator, leading to full site takeover. This is an incomplete fix of CVE-2026-54807.
Vulnerability class: Privilege Escalation
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Unknown Registration Form For Woocommerce
Weakness classification (CWE)
References
- contact@wpscan.com (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-81431?
- CVE-2026-81431 is a high-severity vulnerability in Registration Form For Woocommerce, classified under Improper Privilege Management. CVSS score: 7.2/10. Published 2026-09-10.
- How severe is CVE-2026-81431?
- High severity. CVSS v3 base score is 7.2 out of 10.