EUVD-2026-72066
GHSA-v8gg-42jm-2f6p
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Network-accessible registration endpoint requires no auth; role assignment has low integrity impact only, with no confidentiality or availability consequence from the direct exploit.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
6DescriptionCVE.org
The B2BKing - Ultimate WooCommerce B2B and Wholesale Plugin - Wholesale Prices, Bulk Order Form & More WordPress plugin before 5.2.40 does not verify that a role selected during registration is one actually offered on the registration form, allowing unauthenticated users to assign themselves to restricted B2B customer groups and to skip the manual account-approval workflow during self-registration.
AnalysisAI
Unauthorized role self-assignment in the B2BKing WooCommerce plugin before version 5.2.40 allows unauthenticated registrants to claim restricted B2B customer group memberships without admin approval by supplying arbitrary role parameters not bounded by server-side validation. The plugin fails to verify that a role submitted during account registration is actually one offered on the public registration form, enabling any user to bypass the manual account-approval workflow and gain access to wholesale pricing tiers or restricted catalogs. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target WordPress site runs the B2BKing plugin in a version prior to 5.2.40 with public self-registration enabled - a standard configuration for B2B portals that allow customers to apply for accounts. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 5.3 (Medium) reflects limited direct technical impact - the vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N indicates network-accessible, zero-authentication exploitation with only low integrity impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update the B2BKing plugin to version 5.2.40 or later immediately through the WordPress plugin repository; this is the vendor-released patch confirming the fix. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
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