Improper Input Validation Affecting wordpress package, versions <5.3.2+dfsg1-1
Threat Intelligence
EPSS
0.87% (83rd
percentile)
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Test your applications- Snyk ID SNYK-DEBIANUNSTABLE-WORDPRESS-539943
- published 27 Dec 2019
- disclosed 27 Dec 2019
Introduced: 27 Dec 2019
CVE-2019-20041 Open this link in a new tabHow to fix?
Upgrade Debian:unstable wordpress to version 5.3.2+dfsg1-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wordpress package and not the wordpress package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2019-20041
- https://seclists.org/bugtraq/2020/Jan/8
- https://www.debian.org/security/2020/dsa-4677
- https://www.debian.org/security/2020/dsa-4599
- https://lists.debian.org/debian-lts-announce/2020/01/msg00010.html
- https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53
- https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
CVSS Scores
version 3.1