seacms search.php code execution vulnerability

function parseIf$content if strpos$content,'if:'=== false return $content; else $labelRule = buildregx"if:.? .? end if","is"; $labelRule2="elseif"; $labelRule3="else"; pregmatchall$labelRule,$content,$iar; $arlen=count$iar0; $elseIfFlag=false; for$m=0;$mparseStrIf$strIf; $strThen=$iar2$m;...