CVE-2026-16981 DHL for WooCommerce < 4.0.1 - Unauthenticated Shipping Label Download via IDOR
Unauthenticated attackers can download all shipping labels containing customer PII due to missing authorization checks in the DHL for WooCommerce plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16981?
CVE-2026-16981 is a medium-severity missing authorization vulnerability in Unknown DHL Shipping Germany for WooCommerce, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-16981?
How do I fix CVE-2026-16981?
No fix has been published for CVE-2026-16981 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-16981 being exploited?
There is no known exploitation of CVE-2026-16981 in the wild and no public exploit code.
Sources
Also known as GHSA-xqqx-fcgc-wmxp.