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WC Vendors CVE-2026-81428

| EUVDEUVD-2026-69855 MEDIUM
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-09-02 WPScan GHSA-rcrg-g6hp-vjxv
6.5
CVSS 3.1 · Vendor: WPScan
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Severity by source

Vendor (WPScan) PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
vuln.today AI
6.5 MEDIUM

Network-accessible via authenticated vendor role (PR:L); no confidentiality or availability impact; integrity high due to cross-vendor data modification.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (WPScan).

CVSS VectorVendor: WPScan

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

6
Metadata Corrected
Sep 02, 2026 - 12:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 02, 2026 - 11:40 vuln.today
CVSS changed
Sep 02, 2026 - 11:22 NVD
6.5 (MEDIUM)
Patch available
Sep 02, 2026 - 07:01 EUVD
CVE Published
Sep 02, 2026 - 06:00 cve.org
UNKNOWN (no severity yet)
CVE Published
Sep 02, 2026 - 06:00 cve.org
MEDIUM 6.5

DescriptionCVE.org

The WC Vendors WordPress plugin before 2.7.2.1 does not verify ownership or the object type of user-supplied IDs when saving product variations, allowing authenticated users with the vendor role to modify product variations belonging to other vendors, and to change the status and title of arbitrary posts, via IDOR.

AnalysisAI

Insecure Direct Object Reference in the WC Vendors WordPress plugin before 2.7.2.1 allows any authenticated user holding the vendor role to tamper with product variations owned by other vendors and to overwrite the status and title of arbitrary WordPress posts. The root cause is that the plugin never validates whether a user-supplied object ID actually belongs to the requesting vendor before persisting changes. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires an authenticated account with the WordPress 'vendor' role on a site running WC Vendors before 2.7.2.1. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 6.5 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N) correctly characterizes this as a medium-severity, network-accessible flaw requiring only low-privilege (vendor-role) authentication with no user interaction. … 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 WC Vendors plugin to version 2.7.2.1 or later, which is confirmed by the vendor as the patched release per the WPScan advisory at https://wpscan.com/vulnerability/e573c233-ed24-40a3-a16a-c80317910cce/. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-81428 vulnerability details – vuln.today

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