CVE-2026-10865 Cost Calculator Builder <= 4.0.11 - Unauthenticated Sensitive Information Exposure of Payment Gateway Secret Keys
Unauthenticated attackers can extract payment gateway secret keys from page source if specific global settings are enabled, leading to potential account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-10865?
CVE-2026-10865 is a medium-severity vulnerability in stylemix Cost Calculator Builder, published on 11 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-200
Which versions are affected by CVE-2026-10865?
How do I fix CVE-2026-10865?
No fix has been published for CVE-2026-10865 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-10865 being exploited?
There is no known exploitation of CVE-2026-10865 in the wild and no public exploit code.
Sources
Also known as GHSA-7cvm-m8m6-prmw.