Reported vulnerability

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

Q: Which versions of WhatsOrder – Instant Checkout for WooCommerce are affected?

Wordfence lists these affected versions: Start version unspecified, through 1.0.1. Use the version checker above to compare your installed release with this report.

Q: Is a fix available for WhatsOrder – Instant Checkout for WooCommerce?

Wordfence does not report a fix for this issue in WhatsOrder – Instant Checkout for WooCommerce. Read the source report and ask the developer or your website support team what action to take.

Q: Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Published 23 Jun 2026

Updated 24 Jun 2026

CVE-2026-9612

Compare your installed software with the affected versions below. Follow the source’s remediation guidance and test an available update after taking a backup. A database entry describes a reported issue; it does not establish whether a particular website has been compromised.

Does this affect my version?

Check your installed version against this advisory. This compares the report’s version ranges and does not scan your website.

Wordfence advisory

medium · CVSS 5.3

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.

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

WhatsOrder – Instant Checkout for WooCommerce

Software: plugin · whatsorder-instant-checkout-for-woocommerce
Affected versions: Start version unspecified, through 1.0.1
Fix availability: No fix reported
Fixed versions: No fixed version specified

Recommended action

No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.

Further references (1)

wordfence.com/threat-intel/vulnerabilities/id/e5d625d6-57e0-4dc7-b3ee-cb0639a02230?source=api-prod

Data sources and licences

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CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.

Read licence terms

Source: Wordfence

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Questions about this vulnerability

Which versions of WhatsOrder – Instant Checkout for WooCommerce are affected?

Wordfence lists these affected versions: Start version unspecified, through 1.0.1. Use the version checker above to compare your installed release with this report.

Is a fix available for WhatsOrder – Instant Checkout for WooCommerce?

Wordfence does not report a fix for this issue in WhatsOrder – Instant Checkout for WooCommerce. Read the source report and ask the developer or your website support team what action to take.

Where can I find my installed plugin version?

In WordPress, open Plugins > Installed Plugins and find the version shown beneath the plugin name.

Does an affected version mean my website has been hacked?

An affected version means the installed release matches a vulnerability described in this report. It does not show whether anyone has exploited it on your website. The checker compares version numbers with stored reports; it does not inspect your website.

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