A quick search gives Too late for "-T"? and Confused about Taint.

I suggest you read up on exact what tainting is, and how to effectively (see 2nd update) untaint data - man perlsec is your friend.

Cheers.

Baz.

Update: You might want to look at Ovid's CGI tutorial, which has info on taint mode amoungst other things. Ovid++

Further update: I guess I should be a little more helpful...data is normally untainted by checking that it matches the sort of input you are expecting to be passed into your script for security/sanity.
The effective part of my comment is on this point - make sure that you allow _only_ what you expect - there is a way of untainting all data, but if you do that, you're opening yourself up to a World of Pain.
For example: if you're expecting a single digit number, check for the presence of a single digit in the input - if it's something other than that throw an error and do not process the data any further.


In reply to Re: Using -T on an Apache server by BazB
in thread Using -T on an Apache server by Satanya

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.