CVE-2025-14757

Medium

Description

The Cost Calculator Builder plugin for WordPress is vulnerable to Unauthenticated Payment Status Bypass in all versions up to, and including, 3.6.9 only when used in combination with Cost Calculator Builder PRO. This is due to the complete_payment AJAX action being registered via wp_ajax_nopriv, making it accessible to unauthenticated users, and the complete() function only verifying a nonce without checking user capabilities or order ownership. Since nonces are exposed to all visitors via window.ccb_nonces in the page source, any unauthenticated attacker can mark any order's payment status as "completed" without actual payment.

SeverityMedium
CVSS5.3
Exploit probability—
ProductStylemixthemes Cost Calculator Builder
PublishedJan 16, 2026
First seenJan 16, 2026

How to fix

Update
  • stylemixthemes cost_calculator_builder3.6.10 or later

Affected products

ProductAffected versionsFixed in
stylemixthemes cost_calculator_builderv < 3.6.103.6.10

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