CVE-2026-14900
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk49th percentile - higher than 49% of all known CVEs
Summary
Cost Calculator Builder PRO plugin for WordPress up to 4.0.3 is vulnerable to RCE via js_to_php function. The orderDetails[*].originalValue field is injected into a formula passed to eval(), with insufficient sanitization. Unauthenticated attackers can obtain the nonce from the front-end and execute code on the server.
Risk Assessment
An attacker can fully compromise the WordPress server without authentication.
Recommendation
Immediately update the plugin to version 4.0.4 or later if available.
Original NVD description (English source)
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.