WordPress before 5.2.3 has an issue with URL sanitization in wp_kses_bad_protocol_once in wp-includes/kses.php that can lead to cross-site scripting (XSS) attacks.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade wordpress | Oct 21, 2019 | Sep 11, 2019 |
| Ubuntu | — | No solution exists | Jun 26, 2025 | Sep 11, 2019 |
| Wordpress | — | Upgrade Wordpress to version 5.2.3 | Oct 25, 2019 | Sep 11, 2019 |
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