CVE-2026-66589

MEDIUM 5.4

WordPress B2BKing plugin <= 5.2.30 - Broken Access Control vulnerability

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

Missing Authorization vulnerability in Kings Plugins B2BKing allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects B2BKing: from n/a through 5.2.30.

CWE	CWE-862
Vendor	kings plugins
Product	b2bking
Published	Aug 18, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

Kings Plugins / B2BKing

n/a ≤ 5.2.30

References

NVD ↗ CVE.org ↗ EPSS Data ↗

patchstack.com: https://patchstack.com/database/wordpress/plugin/b2bking-wholesale-for-woocommerce/vulnerability/wordpress-b2bking-plugin-5-2-30-broken-access-control-vulnerability?_s_id=cve

Credits

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