CVE-2026-81431CWE-269privilege-escalation

CVE-2026-81431

High · published September 10, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
39.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00462 · 39.1th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2026-09-10T11:17Z
References (1)
EPSS history
Timeline
  • 11 SEP 03:19Z
    EPSS moved — → 0%
    epss
  • 10 SEP 06:00Z
    Registration Form for WooCommerce 1.1.0 - 1.1.2 - Contributor+ Privilege Escalation via Unvalidated tgwcfb_id
    cvelistv5