Server-Side Template Injection (SSTI) vulnerability in livehelperchat before 4.34v, allows remote attackers to execute arbitrary code and obtain sensitive information via the search parameter in lhc_web/modules/lhfaq/faqweight.php.
https://github.com/LiveHelperChat/livehelperchat/issues/2054
https://github.com/LiveHelperChat/livehelperchat/commit/a61d231526a36d4a7d8cc957914799ee1f9db0ab