I am working inside the WP Admin area and there is a textarea that is using the default WP Editor, not TinyMCE. The WP Editor is removing the <style> tag and also other HTML tags. I am calling it WP Editor, but maybe it's official know as something different? It's the editor with the two tabs in the right corner (Visual,Text)

Is there a way to prevent this Editor from removing all HTML tags?

The content I am adding in the WP Editor is being used in outgoing emails so it's really a full HTML document which is why I am trying to preserve the formatting and html tags.

I notice when I switch from the "Text" tab to the "Visual" tab many HTML tags are stripped.

1 Answer 1


WordPress has a user capability called unfiltered_html. Any user with the unfiltered_html capability can post any HTML they want, including <script> tags.

Due to security concerns, the unfiltered_html capability is—by default—only granted to Administrators (in WordPress Multisite, it's only granted to Super Administrators).

If you need to add the unfiltered_html capability to a non-(Super-)Admin user, you can use WP_User::add_cap() to add it to a user:

add_action( 'admin_init', 'wpse_393657_grant_user_unfiltered_html' );
function wpse_393657_grant_user_unfiltered_html() {
    $user = get_user_by( 'login', 'my_username' );
    if ( ! user_can( $user, 'unfiltered_html' ) ) {
        $user->add_cap( 'unfiltered_html', true );

...or WP_Role::add_cap() to add it to a Role (eg, Editor).

add_action( 'admin_init', 'wpse_393657_grant_role_unfiltered_html' );
function wpse_393657_grant_role_unfiltered_html() {
    $role = get_role( 'editor' );
    if ( ! $role->has_cap( 'unfiltered_html' ) ) {
        $role->add_cap( 'unfiltered_html', true );

(These code snippets are untested, and are meant to provide a starting point for you.)

Note that the capability assignments are permanent (ie, written to the database), and that the user or role will retain the unfiltered_html capability until/unless you revoke it.

  • The "unfiltered html" capability is by default only granted to admins? I am currently an admin and this is a single site (not multisite) and it is stripping out the HTML tags. Does this need to be turned on explicitly @pat-j? Aug 24, 2021 at 1:27
  • 1
    Hmm, good question. I thought Admins were granted unfiltered_html. Can you edit your question, please, to include the code that generates your WP Editor in the backend? (If it's a 3rd-party plugin, you might need to ask their support team for assistance with this.)
    – Pat J
    Aug 24, 2021 at 2:54

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