WordPress · Cost Calculator Builder · CVE-2026-7753
**Name of the Vulnerable Software and Affected Versions**
Cost Calculator Builder versions prior to 3.6.18
**Description**
An issue allows authenticated users with Subscriber-level access and above to gain unauthorized access to sensitive data. The `cost-calculator-custom-export-run` AJAX action, handled by the `CCBExportImport::export calculators()` function, fails to perform a capability check. While the handler verifies a nonce, the `ccb export nonce` variable is broadcast on every wp-admin page, including those accessible to Subscribers like `/wp-admin/profile.php`, via the `ccb add admin nonces` callback. This allows attackers to export the full configuration of all calculators, which may include Stripe secret keys, PayPal client secrets, Razorpay secret keys, webhook secret keys, and reCAPTCHA secret keys.
**Recommendations**
Update to a version newer than 3.6.17.