What’s Vulnerable › Vulnerabilities
CVE-2026-7753: Cost Calculator Builder <= 3.6.17 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Disclosure
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-05 · updated 2026-08-12
- Weakness: CWE-862
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
- stylemix Cost Calculator Builder: through 3.6.17
References
- 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#L129
- 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/trunk/includes/classes/CCBExportImport.php#L308
- https://plugins.trac.wordpress.org/changeset?new=3531960%40cost-calculator-builder%2Ftrunk&old=3528688%40cost-calculator-builder%2Ftrunk
- https://www.wordfence.com/threat-intel/vulnerabilities/id/89de168e-1bce-4e11-a765-afc1d7dce8fe?source=cve
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