CVE-2019-20041
CRITICAL9.8EPSS 1.4%wordpress - security update
Published: 12/27/2019Modified: 5/27/2026
Also known as:DEBIAN-CVE-2019-20041
Description
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.
Affected packages (2)
- Debian/wordpressfrom 0, < 5.3.2+dfsg1-1
- Debian/wordpressfrom 0, < 4.1.29+dfsg-0+deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |