CVE-2019-16781

Published: Dec 26, 2019Modified: Jun 17, 2026

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.3 / Impact: 2.7

Source: NVD

Description

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.

Affected (3)

Products: Wordpress: Wordpress · Debian: Debian Linux

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Wordpress Wordpress	Before 5.3.1

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 9.0

Related CWEs

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

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (14)

https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v

Source: security-advisories@github.com

Third Party Advisory

https://hackerone.com/reports/731301

Source: security-advisories@github.com

Permissions RequiredThird Party Advisory

https://seclists.org/bugtraq/2020/Jan/8

Source: security-advisories@github.com

Mailing ListThird Party Advisory

https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/

Source: security-advisories@github.com

Release NotesThird Party Advisory

https://wpvulndb.com/vulnerabilities/9976

Source: security-advisories@github.com

Third Party Advisory

https://www.debian.org/security/2020/dsa-4599

Source: security-advisories@github.com

Third Party Advisory

https://www.debian.org/security/2020/dsa-4677

Source: security-advisories@github.com

Third Party Advisory

https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://hackerone.com/reports/731301

Source: af854a3a-2127-422b-91ae-364da2661108

Permissions RequiredThird Party Advisory

https://seclists.org/bugtraq/2020/Jan/8

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesThird Party Advisory

https://wpvulndb.com/vulnerabilities/9976

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.debian.org/security/2020/dsa-4599

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.debian.org/security/2020/dsa-4677

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

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