CVE-2019-16780 Detail

Current Description

WordPress users with lower privileges (like contributors) can inject JavaScript code in the block editor using a specific payload, which is executed within the dashboard. This can lead to XSS if an admin opens the post in the editor. Execution of this attack does require an authenticated user. 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. Automatic updates are enabled by default for minor releases and we strongly recommend that you keep them enabled.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.4 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
Base Score:  5.8 MEDIUM
Vector:  CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/WordPress/wordpress-develop/commit/505dd6a20b6fc3d06130018c1caeff764248c29e Patch  Third Party Advisory 
https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-x3wp-h3qx-9w94 Third Party Advisory 
https://hackerone.com/reports/738644 Permissions Required  Third Party Advisory 
https://seclists.org/bugtraq/2020/Jan/8
https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/ Release Notes  Third Party Advisory 
https://wpvulndb.com/vulnerabilities/9976 Third Party Advisory 
https://www.debian.org/security/2020/dsa-4599
https://www.debian.org/security/2020/dsa-4677

Weakness Enumeration

CWE-ID CWE Name Source
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') cwe source acceptance level NIST   Reference acceptance level GitHub, Inc.  

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-16780
NVD Published Date:
12/26/2019
NVD Last Modified:
01/08/2020
Source:
MITRE