Auth bypass in B2bking — Ultimate Woocommerce B2b And Wholesale Plugin Prices, Bulk Order Form & More

CVE-2026-85038

The B2BKing — Ultimate WooCommerce B2B and Wholesale Plugin — Wholesale Prices, Bulk Order Form & More WordPress plugin before 5.2.40 does not verify that a role selected during registration is one actually offered on the registration form, allowing unauthenticated users to assign themselves to restricted B2B customer groups and to skip the manual account-approval workflow during self-registration.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (21.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-85038: held from 0.002 to 0.003.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

  • B2bking — Ultimate Woocommerce B2b And Wholesale Plugin Prices, Bulk Order Form & More

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-85038?
CVE-2026-85038 is a medium-severity vulnerability in B2bking — Ultimate Woocommerce B2b And Wholesale Plugin Prices, Bulk Order Form & More, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-09-06.
How severe is CVE-2026-85038?
Medium severity. CVSS v3 base score is 5.3 out of 10.