Cost Calculator Builder Pro
Monthly
Remote code execution in the StyleMixThemes Cost Calculator Builder PRO WordPress plugin (versions up to and including 4.0.3) lets unauthenticated attackers run arbitrary PHP on the server by injecting non-word XOR gadgets into the orderDetails[*].originalValue field, which is passed verbatim into a PHP eval() call inside js_to_php(). The only gate is a nonce, but that nonce is printed on every front-end page via wp_head, so any anonymous visitor can retrieve it, effectively removing the authentication barrier. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the CVSS 9.8 rating and trivial nonce bypass make this a high-priority, pre-authentication server-takeover flaw.
Remote code execution in the StyleMixThemes Cost Calculator Builder PRO WordPress plugin (versions up to and including 4.0.3) lets unauthenticated attackers run arbitrary PHP on the server by injecting non-word XOR gadgets into the orderDetails[*].originalValue field, which is passed verbatim into a PHP eval() call inside js_to_php(). The only gate is a nonce, but that nonce is printed on every front-end page via wp_head, so any anonymous visitor can retrieve it, effectively removing the authentication barrier. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the CVSS 9.8 rating and trivial nonce bypass make this a high-priority, pre-authentication server-takeover flaw.