CVE-2019-16780
lowpriority · track · 23EPSS 0.017 · 77 %ileEURUUSEPSS · scored 2026-10-26
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–5.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (10)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (28)
External citations — patches, advisories, analysis.
- https://github.com/WordPress/wordpress-develop/commit/505dd6a20b6fc3d06130018c1caeff764248c29ecnnvd
- https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-x3wp-h3qx-9w94cnnvd
- https://hackerone.com/reports/738644cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2019-16780cnnvd
- https://packetstormsecurity.com/files/155880/Debian-Security-Advisory-4599-1.htmlcnnvd
- https://seclists.org/bugtraq/2020/Jan/8cnnvd
- https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/cnnvd
- https://wpvulndb.com/vulnerabilities/9976cnnvd
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