WordPress security changelog
MEDIUM CVE-2026-10865 Deferred

Cost Calculator Builder: Sensitive information exposure

Cost Calculator Builder is affected by sensitive information exposure. The vulnerable path is reachable without authentication. Successful exploitation can disclose data that should not be available to the caller. The published affected range is <= 4.0.11.

CVE / CNA score 5.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Cost Calculator Builder
Plugin slug
cost-calculator-builder
Affected
<= 4.0.11
Safe version
> 4.0.11
Published
Jul 11, 2026
Weakness
CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor

This CVE was published Jul 11, 2026 and is one of 18 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Cost Calculator Builder to a release after 4.0.11, or disable and remove it until a fixed version is available.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical 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.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References

Primary and upstream sources