CVE-2026-16981: CWE-639 Authorization Bypass Through User-Controlled Key in DHL Shipping Germany for WooCommerce
The DHL Shipping Germany for WooCommerce WordPress plugin before 4.0.1 does not perform any authorization check (no capability, nonce, login, or ownership check) on one of its shipping-label download endpoints, so an unauthenticated attacker can enumerate sequential ids and download every stored shipping label, each containing the customer's full name, complete postal address, and order reference.
AI Analysis
Technical Summary
The DHL Shipping Germany for WooCommerce plugin versions prior to 4.0.1 do not implement any authorization mechanisms (such as capability checks, nonces, login verification, or ownership validation) on a shipping-label download endpoint. This flaw enables unauthenticated attackers to enumerate sequential identifiers and retrieve all stored shipping labels. Each label contains sensitive customer data including full names, complete postal addresses, and order references. The vulnerability is classified as CWE-639 (Authorization Bypass Through User-Controlled Key).
Potential Impact
An unauthenticated attacker can access and download shipping labels for all orders by enumerating sequential IDs, exposing customers' full names, postal addresses, and order references. This leads to a confidentiality breach of personal customer information. There is no indication of impact on integrity or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected endpoint by implementing custom authorization checks or disabling the shipping-label download functionality if possible.
CVE-2026-16981: CWE-639 Authorization Bypass Through User-Controlled Key in DHL Shipping Germany for WooCommerce
Description
The DHL Shipping Germany for WooCommerce WordPress plugin before 4.0.1 does not perform any authorization check (no capability, nonce, login, or ownership check) on one of its shipping-label download endpoints, so an unauthenticated attacker can enumerate sequential ids and download every stored shipping label, each containing the customer's full name, complete postal address, and order reference.
CVSS v3.1
Score 5.3medium
Affected software
DHL Shipping Germany for WooCommerce
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The DHL Shipping Germany for WooCommerce plugin versions prior to 4.0.1 do not implement any authorization mechanisms (such as capability checks, nonces, login verification, or ownership validation) on a shipping-label download endpoint. This flaw enables unauthenticated attackers to enumerate sequential identifiers and retrieve all stored shipping labels. Each label contains sensitive customer data including full names, complete postal addresses, and order references. The vulnerability is classified as CWE-639 (Authorization Bypass Through User-Controlled Key).
Potential Impact
An unauthenticated attacker can access and download shipping labels for all orders by enumerating sequential IDs, exposing customers' full names, postal addresses, and order references. This leads to a confidentiality breach of personal customer information. There is no indication of impact on integrity or availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected endpoint by implementing custom authorization checks or disabling the shipping-label download functionality if possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-07-24T08:38:31.349Z
- State
- PUBLISHED
Threat ID: 6a72d7b0bf8831d5395e8359
Added to database: 08/05/2026, 06:26:56 UTC
Last enriched: 08/12/2026, 14:57:33 UTC
Last updated: 09/17/2026, 22:01:33 UTC
Views: 26
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