CVE-2026-10865
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/includes/functions.php#L748
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L28
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L281
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/3.6.17/templates/frontend/render.php#L61
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/includes/functions.php#L748
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L28
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L281
- https://plugins.trac.wordpress.org/browser/cost-calculator-builder/tags/4.0.5/templates/frontend/render.php#L61
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3578557%40cost-calculator-builder&new=3578557%40cost-calculator-builder
- https://www.wordfence.com/threat-intel/vulnerabilities/id/29de766d-5e7e-46b4-acac-feec5b33589e?source=cve
CWEs
CWE-200
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.