Update invision_customcss_rce.rb

Author: Chocapikk

modules/exploits/multi/http/invision_customcss_rce.rb

@@ -82,7 +82,7 @@ def check
     print_status("Detected IPS version: #{version}")
 
     if version.between?(Rex::Version.new('5.0.0'), Rex::Version.new('5.0.6'))
-      CheckCode::Vulnerable("IPS version #{version} is vulnerable (≤ 5.0.6)")
+      CheckCode::Appears("IPS version #{version} is vulnerable (≤ 5.0.6)")
     else
       CheckCode::Safe("IPS version #{version} is not vulnerable")
     end