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CVE-2026-66589— WordPress B2BKing plugin <= 5.2.30 - Broken Access Control vulnerability

Quick assessment

Affected
Kings Plugins B2BKing
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Kings Plugins B2BKing 中存在未授权访问漏洞，可导致利用配置不当的访问控制安全级别。 此问题影响 B2BKing：从 n/a 到 5.2.30 版本。

CVSS 5.4 · Medium EPSS 0.14% · P4

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token

Affected Version Matrix 1

VendorProduct Version RangeStatus
Kings Plugins B2BKing n/a≤ 5.2.30 affected
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I. Basic Information for CVE-2026-66589

Vulnerability Information
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Vulnerability Title
WordPress B2BKing plugin <= 5.2.30 - Broken Access Control vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Kings Plugins B2BKing n/a ~ 5.2.30 -

II. Public POCs for CVE-2026-66589

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III. Intelligence Information for CVE-2026-66589

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News Coverage for CVE-2026-66589 (1)

IV. Related Vulnerabilities

Same product: B2BKing
Same vendor: Kings Plugins
Same weakness: CWE-862

V. Comments for CVE-2026-66589

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