Sounds to me like you want 

$vars{$_} = HTML::Entities::encode_entities($vars{$_}, '<>&"');

[download]

Quote HTML::Entities,

The default set of characters to encode are control chars, high-bit chars, and the <, &, >, ' and " characters. But this, for example, would encode just the <, &, > and " characters:

$encoded = encode_entities($input, '<>&"');

[download]

It converts plain text into tag-less HTML.

In reply to Re: Preventing XSS by ikegami
in thread Preventing XSS by techcode

Title:
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