I had another thought: does your code use locale? (I noticed that your location is Brazil.) Under use locale, perl -T won't trust /\w/ unless you specifically tell it so. For example, in your untaint you would use: 

    {
      no locale;
      if ( $string =~ /([\w\-\_]+)/ ) { $clean_string = $1; } 
   
      else { die "ilegal character: $!"; }
    }

[download]
See Laundering and Detecting Tainted Data in perlsec, and the SECURITY section of perllocale.

the lowliest monk

In reply to Re: Unlink under taint mode by tlm
in thread Unlink under taint mode by Andre_br

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