CVE-2019-16781

Stored cross-site scripting (XSS) in WordPress block editor

CVSS 5.8 MEDIUMEPSS 1.4%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.8EPSS 1.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

26 Dec 2019Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

WordPress · WordPress

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References

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://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/https://wpvulndb.com/vulnerabilities/9976 https://www.debian.org/security/2020/dsa-4599 https://www.debian.org/security/2020/dsa-4677