WordPress security changelog
MEDIUM CVE-2026-16981 Received

DHL Shipping label endpoint permits unauthenticated order disclosure

DHL Shipping Germany for WooCommerce before 4.0.1 exposes a shipping-label download endpoint without a login, capability, nonce or order-ownership check. An unauthenticated attacker can enumerate sequential record IDs and download stored labels containing customer names, full postal addresses and order references. This unscored record received deeper review because it provides an unauthenticated sensitive-data disclosure primitive; the CNA does not disclose the endpoint path or parameter name.

CVE / CNA score 5.3 CVSS 3.1 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
NVD score Pending NVD has not published its own CVSS assessment.
Component
DHL Shipping Germany for WooCommerce
Plugin slug
dhl-shipping-germany-for-woocommerce
Affected
< 4.0.1
Safe version
4.0.1
Published
Aug 05, 2026
Weakness
CWE-639 — Authorization Bypass Through User-Controlled Key

This CVE was published Aug 05, 2026 and is one of 2 known issues for this plugin.

Update, patch or deactivate.

Update DHL Shipping Germany for WooCommerce to 4.0.1 or later. Review historical requests to label-download paths and consider affected labels and customer address data exposed if the vulnerable endpoint was publicly reachable.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary and upstream sources