CVE-2026-9612 WhatsOrder <= 1.0.1 - Unauthenticated Sensitive Information Exposure via Predictable Invoice File URLs

Medium 5.3 Published Updated

Unauthenticated attackers can access sensitive customer PII and order details by enumerating predictable invoice URLs in the WhatsOrder 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-2026-9612?

CVE-2026-9612 is a medium-severity vulnerability in yapacdev WhatsOrder – Instant Checkout for WooCommerce, published on 24 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The WhatsOrder – Instant Checkout for WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.0.1 via the yapacdev_generate_order_pdf. This makes it possible for unauthenticated attackers to extract sensitive customer PII and order details — including full name, email address, phone number, billing address, ordered items with quantities and prices, applied coupons, shipping method, and order total — from any customer's invoice by enumerating sequential order IDs. Invoice HTML files are written to the publicly accessible wp-content/uploads/whatsorder_invoices/ directory, which is created without an .htaccess deny rule or index.php guard, making every invoice directly downloadable over HTTP with no authentication check.

Weakness: CWE-200

Which versions are affected by CVE-2026-9612?

How do I fix CVE-2026-9612?

No fix has been published for CVE-2026-9612 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-9612 being exploited?

There is no known exploitation of CVE-2026-9612 in the wild and no public exploit code.

Sources

Also known as GHSA-xwgw-9h6v-6mv7.

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