Auth bypass in Stylemix Cost Calculator Builder
CVE-2025-14757
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (29.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/b8415e5f-17a4-425c-ac28-5dd88… (Third Party Advisory)
- plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.7/includes/… (Product)
- plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.7/includes/… (Product)
- plugins.trac.wordpress.org/changeset/3437516/cost-calculator-builder/trunk/incl… (Patch)
Frequently asked questions
- What is CVE-2025-14757?
- CVE-2025-14757 is a medium-severity vulnerability in Stylemix Cost Calculator Builder, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-01-16.
- How severe is CVE-2025-14757?
- Medium severity. CVSS v3 base score is 5.3 out of 10.