Perhaps because it was seen as a harmless oversight the invalid code continued to be present in WordPress. HTML is a programming language with rules. Initially, bots and browsers functioned best ...

To add a divider, add some HTML and CSS code to your blog's Theme Editor ... How to Create a Custom Input Box in Wordpress How to Create a Custom Input Box in Wordpress. Input boxes are HTML ...

“A Remote Code Execution vulnerability that ... explaining that the issue is in the ‘WP_HTML_Token’ class, introduced in WordPress 6.4 to improve HTML parsing in the block editor.