/ 
Template-Toolkit-2.21
/ Template::Plugin::CGI
Security Advisories (1)
CVE-2026-5090 (2026-05-19)

Template::Plugin::HTML versions through 3.102 for Perl allows HTML and JavaScript to be injected. The html_filter function did not escape single quotes. HTML attributes inside of single quotes could be have code injected. For example, the variable "var" in <a id='ref' title='[% var | html %]'> would not be properly escaped. An attacker could insert some limited HTML and JavaScript, for example, var = " ' onclick='while (true) { alert(1) }'" Note that arbitrary HTML and JavaScript would be difficult to inject, because angle brackets, ampersands and double-quotes would still be escaped.

NAME

Template::Plugin::CGI - Interface to the CGI module

SYNOPSIS

[% USE CGI %]
[% CGI.param('parameter') %]

[% USE things = CGI %]
[% things.param('name') %]

# see CGI docs for other methods provided by the CGI object

DESCRIPTION

This is a very simple Template Toolkit Plugin interface to the CGI module. A CGI object will be instantiated via the following directive:

[% USE CGI %]

CGI methods may then be called as follows:

[% CGI.header %]
[% CGI.param('parameter') %]

An alias can be used to provide an alternate name by which the object should be identified.

[% USE mycgi = CGI %]
[% mycgi.start_form %]
[% mycgi.popup_menu({ Name   => 'Color'
                      Values => [ 'Green' 'Black' 'Brown' ] }) %]

Parenthesised parameters to the USE directive will be passed to the plugin constructor:

[% USE cgiprm = CGI('uid=abw&name=Andy+Wardley') %]
[% cgiprm.param('uid') %]

METHODS

In addition to all the methods supported by the CGI module, this plugin defines the following.

params()

This method returns a reference to a hash of all the CGI parameters. Any parameters that have multiple values will be returned as lists.

[% USE CGI('user=abw&item=foo&item=bar') %]
[% CGI.params.user %]            # abw
[% CGI.params.item.join(', ') %] # foo, bar

AUTHOR

Andy Wardley <abw@wardley.org> http://wardley.org/

COPYRIGHT

Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved.

This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

Template::Plugin, CGI