Kings Plugins B2BKing Plugin up to 5.2.30 on WordPress authorization

Summaryinfo

A vulnerability was found in Kings Plugins B2BKing Plugin up to 5.2.30. It has been rated as critical. Impacted is an unknown function. Performing a manipulation results in authorization. This vulnerability was named CVE-2026-66589. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in Kings Plugins B2BKing Plugin up to 5.2.30. This affects an unknown function. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at patchstack.com. This vulnerability is uniquely identified as CVE-2026-66589 since 07/27/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/19/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Vendor

• Kings Plugins

Name

• B2BKing Plugin

Version

• 5.2.0
• 5.2.1
• 5.2.2
• 5.2.3
• 5.2.4
• 5.2.5
• 5.2.6
• 5.2.7
• 5.2.8
• 5.2.9
• 5.2.10
• 5.2.11
• 5.2.12
• 5.2.13
• 5.2.14
• 5.2.15
• 5.2.16
• 5.2.17
• 5.2.18
• 5.2.19
• 5.2.20
• 5.2.21
• 5.2.22
• 5.2.23
• 5.2.24
• 5.2.25
• 5.2.26
• 5.2.27
• 5.2.28
• 5.2.29
• 5.2.30

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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