3
votes
1answer
70 views

Do Cookies Need to be Sanatized Before Being Saved?

I recently wrote a plugin and now I'm backtracking a bit to sanitize any and all user input. I know that I should sanitize anything that comes from $_GET or $_POST as a user can insert malicious ...
14
votes
2answers
446 views

In Which Contexts are Plugins Responsible for Data Validation/Sanitization?

I want to make sure all of the data in my plugins/themes is handled securely before entering the database and before being output to the browser. My problem is that there are situations where the API ...
3
votes
1answer
743 views

What is the difference between strip_tags and wp_filter_nohtml_kses?

What is the difference between strip_tags and wp_filter_nohtml_kses. I tried to figure wp_filter_nohtml_kses from the source but it looks like it does something a bit more complex than strip all html ...
0
votes
1answer
134 views

Contact Form Security

Building my own contact form in Wordpress. Any there any security steps I need to consider other than the typical email etc validation and maybe a captcha. I am not sending any data to the database.
6
votes
1answer
576 views

What is the difference between esc_html and wp_filter_nohtml_kses?

What is the exact difference between esc_html and wp_filter_nohtml_kses. Everywhere I look says that both strip all the html, the only difference I can see is to do with exactly how they do this. Does ...
3
votes
1answer
602 views

What's the difference between esc_* functions?

I've read Professional WordPress and it says: esc_html function is used for scrubbing data that contains HTML. This function encodes special characters into their HTML entities esc_attr ...