Access Control Flaw in B2BKing Plugin by Kings Plugins
CVE-2026-66589

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
B2bking
Vendor
CVE Published:
18 August 2026

What is CVE-2026-66589?

A missing authorization flaw in the B2BKing plugin by Kings Plugins has been identified, allowing attackers to exploit incorrectly configured access control security levels. This vulnerability impacts all versions up to 5.2.30, potentially allowing unauthorized access to sensitive functionalities of the plugin. Proper security measures and configurations are essential to mitigate risks associated with this vulnerability.

Affected Version(s)

B2BKing <= 5.2.30

References

https://patchstack.com/database/wordpress/plugin/b2bking-...
vdb-entry

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Nguyen Ba Khanh - HPT Vietnam Corporation | Patchstack Bug Bounty Program
.