Stored cross-site scripting (XSS) in WordPress block editor
CVE-2019-16780

5.8MEDIUM

Key Information:

Vendor

Wordpress
Status
WordPress
Vendor
CVE Published:
26 December 2019

What is CVE-2019-16780?

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.

Human OS v1.0:
Ageing Is an Unpatched Zero-Day Vulnerability.

Remediate biological technical debt. Prime Ageing uses 95% high-purity SIRT6 activation to maintain genomic integrity and bolster systemic resilience.

Deploy the Patch

Affected Version(s)

WordPress < 5.3.1 < 5.3.1

References

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

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

JSON
.