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CVE-2019-20042

Date: December 27, 2019

In wp-includes/formatting.php in WordPress 3.7 to 5.3.0, the function wp_targeted_link_rel() can be used in a particular way to result in a stored cross-site scripting (XSS) vulnerability. This has been patched in WordPress 5.3.1, along with all the previous WordPress versions from 3.7 to 5.3 via a minor release.

Language: PHP

Severity Score

Related Resources (14)

https://people.canonical.com/~ubuntu-security/cve/CVE-2019-20042
https://seclists.org/bugtraq/2020/Jan/8
https://github.com/WordPress/wordpress-develop/commit/1f7f3f1f59567e2504f0fbebd51ccf004b3ccb1d
https://hackerone.com/reports/509930
https://www.debian.org/security/2020/dsa-4677
https://blog.ripstech.com/filter/vulnerabilities/
https://www.debian.org/security/2020/dsa-4599
https://wpvulndb.com/vulnerabilities/9975
https://core.trac.wordpress.org/changeset/46894/trunk
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-xvg2-m2f4-83m7
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
https://security-tracker.debian.org/tracker/CVE-2019-20042
https://nvd.nist.gov/vuln/detail/CVE-2019-20042
https://www.mend.io/vulnerability-database/CVE-2019-20042

Severity Score

Weakness Type (CWE)

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

CWE-79

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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