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WordPress Improper Input Validation Vulnerability (CVE-2019-20041) - Vulnerability Database

WordPress Improper Input Validation Vulnerability (CVE-2019-20041)

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.

References

CVE-2019-20041

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Severity

Critical

Classification

CVE-2019-20041
CWE-20
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Tags

Missing Update
Known Vulnerabilities