I think an attacker could at least inject HTML/JS/XSS into your web-page and damage the user.

One major rule is to mistrust any input and to filter to a minimal whitelist of allowed/expected characters.

see also

update

after wondering what $buffer means I realized that you don't even use strict and warnings ... 🤷🏽🤦🤷🏽

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

In reply to Re: Any security holes? by LanX
in thread Any security holes? by Limbomusic

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