CVE-2026-10865 json
Cost Calculator Builder <= 4.0.11 - Unauthenticated Sensitive Information Exposure of Payment Gateway Secret Keys
published 2026-07-11 3 mo ago modified 2026-07-13 3 mo ago also EUVD-2026-43152
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.58% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | 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
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/29de766d-5e7e-46b4-acac-feec5b33589e?source=cve
- plugins.trac.wordpress.org /browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L281
- plugins.trac.wordpress.org /browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L61
- plugins.trac.wordpress.org /browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L28
- plugins.trac.wordpress.org /browser/cost-calculator-builder/tags/4.0.5/includes/functions.php#L748
- plugins.trac.wordpress.org /browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L281
- plugins.trac.wordpress.org /browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L61
- plugins.trac.wordpress.org /browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L28
- plugins.trac.wordpress.org /browser/cost-calculator-builder/tags/3.6.17/includes/functions.php#L748
- plugins.trac.wordpress.org /changeset?reponame=&old=3578557%40cost-calculator-builder&new=3578557%40cost-calculator-builder
Sources
- CVE List CVE-2026-10865
- NVD CVE-2026-10865
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.