Vulnerability CVE-2019-20042
Published: 2019-12-27

Description:
WordPress before 5.3.1 allowed an attacker to create a cross-site scripting attack (XSS) in well crafted links, because of an insufficient protection mechanism in wp_targeted_link_rel in wp-includes/formatting.php.

Type:

CWE-79

 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'))

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
None
Affected software
Wordpress -> Wordpress 

 References:
https://blog.ripstech.com/filter/vulnerabilities/
https://core.trac.wordpress.org/changeset/46894/trunk
https://github.com/WordPress/wordpress-develop/commit/1f7f3f1f59567e2504f0fbebd51ccf004b3ccb1d
https://seclists.org/bugtraq/2020/Jan/8
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
https://wpvulndb.com/vulnerabilities/9975
https://www.debian.org/security/2020/dsa-4599
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