Cost Calculator Builder PRO <= 4.0.3 - Unauthenticated Remote Code Execution via 'orderDetails' Parameter
| CVE | CVE-2026-14900 |
|---|---|
| CVSS | 9.8 (Critical) |
| Publicly Published | July 28, 2026 |
| Last Updated | July 29, 2026 |
| Researcher |
Nox Axter
|
Description
The Cost Calculator Builder PRO plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.0.3 via the js_to_php function. This is due to insufficient sanitization of the orderDetails[*].originalValue field, which is injected verbatim into a calculator formula string passed to PHP eval() inside js_to_php(), with the regex allow-list in evaluateFormula() only filtering alphanumeric tokens and leaving non-word punctuation characters intact. This makes it possible for unauthenticated attackers to execute code on the server. The only authentication barrier is a nonce check, but the required nonce is publicly emitted on every front-end page via the wp_head hook, making it freely obtainable by unauthenticated visitors. Payloads must be non-word XOR gadgets to bypass sanitization.
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Vulnerability Details for Cost Calculator Builder PRO
| Software Type | Plugin |
|---|---|
| Software Slug | cost-calculator-builder-pro |
| Patched? | Yes |
| Remediation | Update to version 4.0.4, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Cost Calculator Builder PRO
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