WordPress Core < 5.4.2 - Self-Cross Site Scripting via Theme Folder Name

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2.4
Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
CVE CVE-2020-4049
CVSS 2.4 (Low)
Publicly Published June 10, 2020
Last Updated January 22, 2024
Researcher Nrimo Ing Pandum

Description

In affected versions of WordPress, when uploading themes, the name of the theme folder can be crafted in a way that could lead to JavaScript execution in /wp-admin on the themes page. This does require an admin to upload the theme, and is low severity self-XSS. 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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