CVE-2019-20041

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/	Release Notes Vendor Advisory
https://github.com/WordPress/wordpress-develop/commit/b1975463dd995da19bb40d3fa0786498717e3c53	Patch
https://www.debian.org/security/2020/dsa-4599	Third Party Advisory
https://seclists.org/bugtraq/2020/Jan/8	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00010.html	Mailing List Third Party Advisory
https://www.debian.org/security/2020/dsa-4677	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Information

Published : 2019-12-27 00:15

Updated : 2022-11-23 12:12

NVD link : CVE-2019-20041

Mitre link : CVE-2019-20041

JSON object : View

CWE

CWE-20

Improper Input Validation

Products Affected

debian

debian_linux

wordpress

wordpress

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9.8 /10