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WC Vendors Plugin CVE-2026-81427

| EUVDEUVD-2026-69854 MEDIUM
Missing Authorization (CWE-862)
2026-09-02 WPScan GHSA-4pgf-p454-mf4w
4.3
CVSS 3.1 · Vendor: WPScan
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Severity by source

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

Network-reachable front-end endpoint, low complexity, vendor account required (PR:L), integrity-only impact limited to order status and notes.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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
Low
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
4.3 (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 4.3

DescriptionCVE.org

The WC Vendors WordPress plugin before 2.7.2.1 does not verify that the vendor submitting a front-end order shipment status change owns the referenced order, allowing any authenticated vendor to mark another vendor's order as shipped, add an order note falsely attributed to the victim vendor, and trigger the customer shipment notification email.

AnalysisAI

Missing order-ownership verification in WC Vendors WordPress plugin before 2.7.2.1 allows any authenticated vendor to manipulate shipment records belonging to other vendors. An attacker with a valid vendor account can submit a front-end shipment status update referencing any order ID regardless of ownership, causing the order to be falsely marked as shipped, an order note to be injected under the victim vendor's identity, and the customer to receive a fraudulent dispatch notification. …

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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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Persist
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid vendor-level WordPress account on the target multi-vendor marketplace (PR:L). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The official CVSS 3.1 score of 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N) accurately reflects the limited technical impact: exploitation requires a valid vendor account (PR:L), and the impact is constrained to integrity of order records (I:L) with no confidentiality or availability consequence. … 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 WC Vendors to version 2.7.2.1 or later, which introduces server-side validation that the authenticated vendor owns the order before applying any shipment status change. … Detailed patch versions, workarounds, and compensating controls in full report.

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CVE-2026-81427 vulnerability details – vuln.today

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