WordPress Core < 5.4.2 - Authenticated Stored Cross-Site Scripting

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5.4
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2020-4046
CVSS 5.4 (Medium)
Publicly Published June 10, 2020
Last Updated January 22, 2024
Researcher Sam Thomas

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).

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1 affected software package

WordPress

Software Type Core
Patched? Yes
Remediation Update to one of the following versions, or a newer patched version: 3.7.34, 3.8.34, 3.9.32, 4.0.31, 4.1.31, 4.2.28, 4.3.24, 4.4.23, 4.5.22, 4.6.19, 4.7.18, 4.8.14, 4.9.15, 5.0.10, 5.1.6, 5.2.7, 5.3.4, 5.4.2
Affected Versions
  • < 3.7
  • 5.0 - 5.0.9
  • 5.1 - 5.1.5
  • 5.2 - 5.2.6
Expand to see 14 more affected version ranges.
  • 5.3 - 5.3.3
  • 3.7 - 3.7.33
  • 3.8 - 3.8.33
  • 3.9 - 3.9.31
  • 4.0 - 4.0.30
  • 4.1 - 4.1.30
  • 4.2 - 4.2.27
  • 4.3 - 4.3.23
  • 4.4 - 4.4.22
  • 4.5 - 4.5.21
  • 4.6 - 4.6.18
  • 4.7 - 4.7.17
  • 4.8 - 4.8.13
  • 4.9 - 4.9.14
Patched Versions
  • 3.7.34
  • 3.8.34
  • 3.9.32
  • 4.0.31
Expand to see 14 more patched versions.
  • 4.1.31
  • 4.2.28
  • 4.3.24
  • 4.4.23
  • 4.5.22
  • 4.6.19
  • 4.7.18
  • 4.8.14
  • 4.9.15
  • 5.0.10
  • 5.1.6
  • 5.2.7
  • 5.3.4
  • 5.4.2

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