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CVE-2026-10865

MEDIUM 5.3 CVSS 3.1
Published
July 11, 2026
Last modified
July 13, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-200
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

The Cost Calculator Builder plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.0.11 via the (template body). This makes it possible for unauthenticated attackers to extract the plaintext Stripe secret key, Razorpay secret key, and PayPal client_secret embedded in the page source of any page containing a calculator, enabling full control of the merchant's payment gateway accounts. This exposure only occurs when the 'use in all calculators' option is enabled for one or more payment gateways in the plugin's global settings.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • stylemix Cost Calculator Builder — Up to and including 4.0.11

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/includes/functions.php#L748
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L28
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L281
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L61
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/includes/functions.php#L748
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L28
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L281
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L61
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3578557%40cost-calculator-builder&new=3578557%40cost-calculator-builder
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/29de766d-5e7e-46b4-acac-feec5b33589e?source=cve
  • nvd.nist.gov Official NVD record