CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2019-20041
Critical (9.8). EPSS 4.5% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 4.5% chance of exploitation in the next 30 days; higher than 91% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- wordpress:wordpress
References
- https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53
- https://lists.debian.org/debian-lts-announce/2020/01/msg00010.html
- https://seclists.org/bugtraq/2020/Jan/8
- https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
- https://www.debian.org/security/2020/dsa-4599