B2BKing — Ultimate WooCommerce B2B and Wholesale Plugin — Wholesale Prices, Bulk Order Form & More < 5.2.10 - Missing Authorization
Strategic Overview
- Status
- Patched in 5.2.10
- Affected Plugin
- B2BKing — Ultimate WooCommerce B2B and Wholesale Plugin — Wholesale Prices, Bulk Order Form & More
- Affected Version
< 5.2.10- CVSS
- 2.7Low
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2026-27346
At a glance
CVE-2026-27346 is a low-severity Missing Authorization vulnerability in the B2BKing WordPress plugin, affecting versions < 5.2.10. It carries a CVSS score of 2.7 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 5.2.10; sites on affected versions should update now. Disclosed May 2026, reported by Phat RiO.
Vulnerability Overview
The B2BKing — Ultimate WooCommerce B2B and Wholesale Plugin — Wholesale Prices, Bulk Order Form & More plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to 5.2.10. This makes it possible for authenticated attackers, with shop manager-level access and above, to perform an unauthorized action.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.
CWE-862: Missing Authorization
Reaching this weakness in B2BKing < 5.2.10 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For B2BKing the fix is 5.2.10: builds < 5.2.10 are affected, anything from 5.2.10 onward is not.
Remediation
Update to version 5.2.10, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: B2BKing 5.2.10 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
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