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Status published
Medium
CVE-2019-16781
Stored cross-site scripting (XSS) in WordPress block editor
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://wpvulndb.com/vulnerabilities/9976
- https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-pg4x-64rh-3c9v
- https://hackerone.com/reports/731301
- https://seclists.org/bugtraq/2020/Jan/8
- https://www.debian.org/security/2020/dsa-4599
- https://www.debian.org/security/2020/dsa-4677
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Affected Vendor
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View all reports →Affected Software
WordPress
Vulnerable Versions:
< 5.3.1
Timeline
Official Publish:
December 26th, 2019
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N