CVE-2020-4046

Summary

In affected versions of WordPress, users with low privileges (like contributors and authors) can use the embed block in a certain way to inject unfiltered HTML in the block editor. When affected posts are viewed by a higher privileged user, this could lead to script execution in the editor/wp-admin. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34).

Affected Software

VendorProductVersion RangeStatus
WordPresswordpress-develop>= 5.4.0, < 5.4.2affected
WordPresswordpress-develop>= 5.3.0, < 5.3.4affected
WordPresswordpress-develop>= 5.2.0, < 5.2.7affected
WordPresswordpress-develop>= 5.1.0, < 5.1.6affected
WordPresswordpress-develop>= 5.0.0, < 5.0.10affected
WordPresswordpress-develop>= 4.9.0, < 4.9.15affected
WordPresswordpress-develop>= 4.8.0, < 4.8.14affected
WordPresswordpress-develop>= 4.7.0, < 4.7.18affected
WordPresswordpress-develop>= 4.6.0, < 4.6.19affected
WordPresswordpress-develop>= 4.5.0, < 4.5.22affected
WordPresswordpress-develop>= 4.4.0, < 4.4.23affected
WordPresswordpress-develop>= 4.3.0, < 4.3.24affected
WordPresswordpress-develop>= 4.2.0, < 4.2.28affected
WordPresswordpress-develop>= 4.1.0, < 4.1.31affected
WordPresswordpress-develop>= 4.0.0, < 4.0.31affected
WordPresswordpress-develop>= 3.9.0, < 3.9.32affected
WordPresswordpress-develop>= 3.8.0, < 3.8.34affected
WordPresswordpress-develop>= 3.7.0, < 3.7.34affected

Weaknesses

  • CWE-80: CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

ADP Enrichment

CVE Program Container

Additional References

References