Stored cross-site scripting (XSS) in WordPress block editor
CVE-2019-16781

5.8MEDIUM

Key Information:

Vendor

Wordpress
Status
WordPress
Vendor
CVE Published:
26 December 2019

What is CVE-2019-16781?

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.

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Deploy the Patch

Affected Version(s)

WordPress < 5.3.1 < 5.3.1

References

https://wpvulndb.com/vulnerabilities/9976
x_refsource_MISC
https://wordpress.org/news/2019/12/wordpress-5-3-1-securi...
x_refsource_MISC
https://github.com/WordPress/wordpress-develop/security/a...
x_refsource_CONFIRM

CVSS V3.1

Score:
5.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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