Vulnerability · Published Aug 5, 2026 · Assigned by Wordfence
CVE-2026-7753Cost Calculator Builder <= 3.6.17 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Disclosure
Medium 6.5
In plain English
A medium-severity missing authorization in Cost Calculator Builder from stylemix. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Official description
The Cost Calculator Builder plugin for WordPress is vulnerable to unauthorized access of sensitive data due to a missing capability check on the `cost-calculator-custom-export-run` AJAX action (handler `CCBExportImport::export_calculators()`) in all versions up to, and including, 3.6.17. The handler only verifies a nonce, but the corresponding `ccb_export_nonce` is broadcast on every wp-admin page (including pages reachable to Subscribers, such as `/wp-admin/profile.php`) by the `ccb_add_admin_nonces` callback hooked to `admin_head`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to export every calculator's full configuration — including stored Stripe secret keys, PayPal client secrets, Razorpay secret keys, webhook secret keys, and reCAPTCHA secret keys.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| stylemix | Cost Calculator Builder | 0 – through 3.6.17 |
Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/89de168e-1bce-4e11-a765-afc1d7dce8fe?source=cve
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/trunk/includes/classes/CCBExportImport.php#L308
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/includes/classes/CCBExportImport.php#L308
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/includes/install.php#L24
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/includes/install.php#L77
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/includes/install.php#L129
- https://plugins.trac.wordpress.org/changeset?new=3531960%40cost-calculator-builder%2Ftrunk&old=3528688%40cost-calculator-builder%2Ftrunk