\t', '»', '\0'),
escapeHTML(
str_replace("\0", '\0(null)',
wordwrap($string, 28, " »\n", true)
)
)
);
}
?>
HTML Purifier XSS Attacks Smoketest
HTML Purifier XSS Attacks Smoketest
XSS attacks are from
http://ha.ckers.org/xss.html.
Caveats:
Google.com has been programatically disallowed, but as you can
see, there are ways of getting around that, so coverage in this area
is not complete. Most XSS broadcasts its presence by spawning an alert dialogue.
The displayed code is not strictly correct, as linebreaks have been forced for
readability. Linewraps have been marked with ». Some tests are
omitted for your convenience. Not all control characters are displayed.
Test
Requires PHP 5.');
$xml = simplexml_load_file('xssAttacks.xml');
// programatically disallow google.com for URI evasion tests
// not complete
$config = HTMLPurifier_Config::createDefault();
$config->set('URI', 'HostBlacklist', array('google.com'));
$purifier = new HTMLPurifier($config);
?>
| Name | Raw | Output | Render |
|---|
attack as $attack) {
$code = $attack->code;
// custom code for null byte injection tests
if (substr($code, 0, 7) == 'perl -e') {
$code = substr($code, $i=strpos($code, '"')+1, strrpos($code, '"') - $i);
$code = str_replace('\0', "\0", $code);
}
// disable vectors we cannot test in any meaningful way
if ($code == 'See Below') continue; // event handlers, whitelist defeats
if ($attack->name == 'OBJECT w/Flash 2') continue; // requires ActionScript
if ($attack->name == 'IMG Embedded commands 2') continue; // is an HTTP response
// custom code for US-ASCII, which couldn't be expressed in XML without encoding
if ($attack->name == 'US-ASCII encoding') $code = urldecode($code);
?>
>
name); ?> |
|
purify($code); ?>
|
|