Medium 5.3Published Jul 11, 2026

CVE-2026-10865Cost Calculator Builder <= 4.0.11 - Unauthenticated Sensitive Information Exposure of Payment Gateway Secret Keys

Updated under an hour ago (Oct 27, 2026, 8:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for stylemix Cost Calculator Builder

Exploited in the last 30 days

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.

CVSS: 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-200
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Jul 13, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

stylemix Cost Calculator Builder stylemix:cost_calculator_builder (from the name)	through 4.0.11	CNA record

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.