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Wordpress: CVE-2019-20041: Improper Input Validation

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Wordpress: CVE-2019-20041: Improper Input Validation

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
12/27/2019
Created
01/07/2020
Added
01/06/2020
Modified
05/08/2020

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.

Solution(s)

  • wordpress-upgrade-5_3_1

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