My webhost says 1.3.5 is not secure!

[metallion]

My webhosting was just suspended due to "the presence of vulnerable scripts located within your account that allowed an outside entity to upload malicious software to our server through your account."

They are having a problem with my Copermine 1.3.5 install.  Any idea what could be causing a red flag?  Would upgrading to the 1.4 beta solve this vulnerability?

[Abbas Ali]

Ask your webhost what malicious software was uploaded. Tell them to give details.