note 51451 added to function.htmlentities
| From: | jasperbg at gmail dot com | Date: | Thu, 31 Mar 2005 04:45:08 +0000 |
| Subject: | note 51451 added to function.htmlentities | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-87231@lists.php.net to get a copy of this message | ||
art at zollerwagner dot com:
You DO need to htmlentities() data that you will be placing in a textarea field.
Imagine that a user were to submit the following data to be placed in the field:
</textarea>
<script type="text/javascript" src="[some evil script
here]"></script>
<textarea>
If you didn't htmlentities() the data, that would close the textarea, include the user's
potentially malicious script, and then open a new textarea (optional, but preserves code validity).
A classic XSS attack.
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Manual Page -- http://www.php.net/manual/en/function.htmlentities.php
Edit -- http://master.php.net/manage/user-notes.php?action=edit+51451
Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+51451&report=yes&reason=added+to+the+manual
Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+51451&report=yes&reason=bad+code
Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+51451&report=yes&reason=spam
Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+51451&report=yes&reason=useless
Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+51451&report=yes
Reject -- http://master.php.net/manage/user-notes.php?action=reject+51451&report=yes
Search -- http://master.php.net/manage/user-notes.php