wp_kses_bad_protocol in wp-includes/kses.php in WordPress before 5.3.1 mishandles the HTML5 colon named entity, allowing attackers to bypass input sanitization, as demonstrated by the javascript: substring.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade wordpress | Jan 9, 2020 | Dec 27, 2019 |
| Wordpress | — | Upgrade Wordpress to version 5.3.1 | Jan 6, 2020 | Dec 27, 2019 |
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