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CVE PROGRAM SOURCE RECORD5.4 Medium

CVE-2020-4046

Authenticated XSS through embed block in WordPress

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

WordPress wordpress-develop

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

References