stylemix Cost Calculator Builder Plugin up to 4.0.11 on WordPress Global Settings template body client_secret/secret key missing encryption

Summaryinfo

A vulnerability labeled as problematic has been found in stylemix Cost Calculator Builder Plugin up to 4.0.11. The impacted element is an unknown function of the file template body of the component Global Settings. Executing a manipulation of the argument client_secret/secret key can lead to missing encryption. This vulnerability appears as CVE-2026-10865. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in stylemix Cost Calculator Builder Plugin up to 4.0.11. This vulnerability affects an unknown part of the file template body of the component Global Settings. The manipulation of the argument client_secret/secret key with an unknown input leads to a missing encryption vulnerability. The CWE definition for the vulnerability is CWE-311. The product does not encrypt sensitive or critical information before storage or transmission. As an impact it is known to affect confidentiality. CVE summarizes:

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.

The advisory is available at wordfence.com. This vulnerability was named CVE-2026-10865 since 06/04/2026. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1600 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• stylemix

Name

• Cost Calculator Builder Plugin

Version

• 4.0.0
• 4.0.1
• 4.0.2
• 4.0.3
• 4.0.4
• 4.0.5
• 4.0.6
• 4.0.7
• 4.0.8
• 4.0.9
• 4.0.10
• 4.0.11

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

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Entryinfo

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