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OpenAdvisories
Medium · 5.3 CVE-2026-10865 EUVD-2026-43152GHSA-7cvm-m8m6-prmw

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

Published Jul 11, 2026 · Updated Jul 13, 2026 · Assigned by Wordfence

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 products

VendorProductAffectedFixed
stylemix Cost Calculator Builder ≤ 4.0.11 —

References