CVE-2019-20041

critical

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&colon; substring.

References

https://www.debian.org/security/2020/dsa-4677

https://www.debian.org/security/2020/dsa-4599

https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/

https://seclists.org/bugtraq/2020/Jan/8

https://lists.debian.org/debian-lts-announce/2020/01/msg00010.html

https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53

Details

Source: Mitre, NVD

Published: 2019-12-27

Updated: 2022-11-23

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

Detections

Analytics