/ 
Template-Toolkit-2.01 UNAUTHORIZED RELEASE
/ Template::FAQ
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::FAQ - Frequently Asked Questions about the Template Toolkit

DESCRIPTION

This is the Frequently Asked Questions list for the Template Toolkit. More accurately, it's a very thin placeholder for where the FAQ will soon be.

General Questions

Why is the sky blue?

Something to do with refraction.

Language

Why doesn't [% a = b IF c %] work as expected?

Because the parser interprets it as [% a = (b IF c) %].

Do this instead:

[% SET a = b IF c %]

Plugins

Using the Table plugin, how do I order the data to go across rather than down?

Order the data into rows:

    Steve     Karen     Jeff
    Brooklyn  Nantucket Fairfax
    NY        MA        VA

   [% USE table(data, rows=3) %]

Then ask for each column

   [% FOREACH column = table.cols %]

And then print each item in the column going across the output rows

    [% FOREACH item = column %]
	<td>[% item %]</td>
    [% END %]

Extending the Template Toolkit

Can I serve templates from a database?

Short answer: yes, Chris Nandor has done this for Slash. You need to subclass Template::Provider. See the mailing list archives for further info.

Miscellaneous

Can I have another cup of coffee?

No, I think you've hhhaadd ennnough alllrready.

AUTHOR

Andy Wardley <abw@kfs.org>

http://www.andywardley.com/

VERSION

Template Toolkit version 2.01, released on 30th March 2001.

COPYRIGHT

Copyright (C) 1996-2001 Andy Wardley.  All Rights Reserved.
Copyright (C) 1998-2001 Canon Research Centre Europe Ltd.

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