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CVE-2019-16781

Date: December 26, 2019

In WordPress before 5.3.1, authenticated users with lower privileges (like contributors) can inject JavaScript code in the block editor, which is executed within the dashboard. It can lead to an admin opening the affected post in the editor leading to XSS.

Language: PHP

Severity Score

Related Resources (11)

https://hackerone.com/reports/731301
https://seclists.org/bugtraq/2020/Jan/8
https://security-tracker.debian.org/tracker/CVE-2019-16781
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
https://www.debian.org/security/2020/dsa-4677
https://www.debian.org/security/2020/dsa-4599
https://nvd.nist.gov/vuln/detail/CVE-2019-16781
https://wpvulndb.com/vulnerabilities/9976
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-16781
https://www.mend.io/vulnerability-database/CVE-2019-16781

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): HIGH
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

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

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