CVE-2026-10865mediumCWE-200

CVE-2026-10865: medium-severity vulnerability in stylemix Cost Calculator Builder

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

Published · Updated

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 5.3epss 0.6%
exploitation probability
0.6%top 54% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
stylemix · Cost Calculator Builder
Related CVEs — stylemix Cost Calculator Builder

In the same product, most dangerous first.

CVE-2025-12529HIGHCost Calculator Builder <= 3.6.3 - Unauthenticated Arbitrary File DeletionEPSS 0.5%CVE-2026-7753MEDIUMCost Calculator Builder <= 3.6.17 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information DisclosureEPSS 0.5%CVE-2024-6011MEDIUMCost Calculator Builder <= 3.2.12 - Authenticated (Administrator+) Stored Cross-Site ScriptingEPSS 0.4%CVE-2025-2128MEDIUMCost Calculator Builder <= 3.2.67 - Authenticated (Subscriber+) SQL Injection via order_ids ParameterEPSS 0.4%CVE-2024-6012MEDIUMCost Calculator Builder <= 3.2.12 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Content CreationEPSS 0.4%CVE-2025-14757MEDIUMCost Calculator Builder <= 3.6.9 - Missing Authorization to Unauthenticated Payment Status BypassEPSS 0.4%
References
https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/includes/functions.php#L748https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L28https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L281https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L61https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/includes/functions.php#L748https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L28https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L281https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L61https://plugins.trac.wordpress.org/changeset?reponame=&old=3578557%40cost-calculator-builder&new=3578557%40cost-calculator-builderhttps://www.wordfence.com/threat-intel/vulnerabilities/id/29de766d-5e7e-46b4-acac-feec5b33589e?source=cve