[wp-hackers] Why kses filtered html strips class?

Chris chris.hearn01 at ntlworld.com
Thu Aug 2 23:36:18 GMT 2007

Jacob, thanks for the link - have downloaded it and that does solve the 
problem - just _another plugin!
Still dont understand why WP whacks it tho!

jacobsantos at branson.com wrote:
> Why don't you use something like HTML Purifier and overwrite the 
> default Kses for editors? HTML Purifier and a WordPress plugin can be 
> found at http://htmlpurifier.org .
> If it isn't whitelisted, then it is removed. From reading kses.php, 
> from what I can gather is that there are two whitelists. One that has 
> major permissions, I guess for Administrators and one that is a more 
> restrictive version.
> Chris wrote:
>> Hi,
>> I have a modified plugin which allows my "Editor" users to upload and 
>> add links to pdf files from within tinymce editor - (it inserts an 
>> icon with a link to the actual pdf file). I have put a 
>> class="thumb_icon" into the html, so that the link icons can be 
>> styled - but kses is stripping code out - why? and how to modify so 
>> that it doesn't.
>> I don't really want to allow unfiltered html for the "Editor" 
>> capabilities.
>> The kses.php mentions using my-hacks.php... if this is the way to go, 
>> what would I put in there?
>> But I still don't understand why class="xx" is considered nasty and 
>> must be removed!
>> thanks
>> Chris
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