CVE-2026-66589

Deferred Deferred - Pending Action

Missing Authorization in B2BKing Plugin

Publication date: 2026-08-18

Last updated on: 2026-08-21

Assigner: Patchstack

Description

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.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-08-18

Last Modified

2026-08-21

Generated

2026-09-08

AI Q&A

2026-08-19

EPSS Evaluated

2026-09-07

NVD

CVE-2026-66589

EUVD

EUVD-2026-62211

Affected Vendors & Products

Vendor	Product	Version / Range
kings_plugins	b2bking	to 5.2.30 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

Missing Authorization vulnerability in Kings Plugins B2BKing allows attackers to exploit incorrectly configured access control security levels. This means unauthorized users may gain access to restricted functions or data due to improper permission settings.

Impact Analysis

This vulnerability could allow unauthorized users to access sensitive information or perform actions they shouldn't, potentially leading to data breaches or misuse of the system. The impact depends on the specific functions exposed by the misconfigured access controls.

Compliance Impact

The vulnerability allows unauthorized access due to missing authorization checks, which could lead to exposure of sensitive data. This may violate compliance requirements under GDPR (data protection) and HIPAA (healthcare data privacy) by enabling unauthorized data access or disclosure.

Mitigation Strategies

Update B2BKing plugin to the latest version (5.2.30 or higher) to address the missing authorization vulnerability. Review and correct access control security levels to ensure proper authorization checks are in place.

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