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CVE-2019-20041

Published: 27 December 2019

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.

Priority

Medium

CVSS 3 base score: 9.8

Status

Package Release Status
wordpress
Launchpad, Ubuntu, Debian
Upstream
Released (5.3.2+dfsg1-1)
Ubuntu 21.10 (Impish Indri) Not vulnerable
(5.3.2+dfsg1-1)
Ubuntu 21.04 (Hirsute Hippo) Not vulnerable
(5.3.2+dfsg1-1)
Ubuntu 20.04 LTS (Focal Fossa) Not vulnerable
(5.3.2+dfsg1-1)
Ubuntu 18.04 LTS (Bionic Beaver) Needs triage

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end of standard support, was needs-triage)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist