WordPress Core < 6.0.3 - Authenticated (Admin+) Stored Cross-Site Scripting via Customizer

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE Not available
CVSS Medium (5.5)
Publicly Published October 18, 2022
Last Updated January 22, 2024
Researcher Alex Concha
Description

WordPress Core is vulnerable to Stored Cross-Site Scripting via the Customizer in versions up to 6.0.3. This is due to insufficient escaping on the 'Blog Name' value that could be edited and become executable with the right payload while in the theme customizer. This would make it possible for authenticated attacker with access to customize a theme, such as administrators to inject malicious JavaScript into the page.

References

1 affected software package

Software Type Core
Software Slug wordpress (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.6.1
  • 3.7 - 3.7.39
  • 3.8 - 3.8.39
  • 3.9 - 3.9.37
  • 4.0 - 4.0.36
  • 4.1 - 4.1.36
  • 4.2 - 4.2.33
  • 4.3 - 4.3.29
  • 4.4 - 4.4.28
  • 4.5 - 4.5.27
  • 4.6 - 4.6.24
  • 4.7 - 4.7.24
  • 4.8 - 4.8.20
  • 4.9 - 4.9.21
  • 5.0 - 5.0.17
  • 5.1 - 5.1.14
  • 5.2 - 5.2.16
  • 5.3 - 5.3.13
  • 5.4 - 5.4.11
  • 5.5 - 5.5.10
  • 5.6 - 5.6.9
  • 5.7 - 5.7.7
  • 5.8 - 5.8.5
  • 5.9 - 5.9.4
  • 6.0 - 6.0.2
Patched Version
  • 3.7.40
  • 3.8.40
  • 3.9.38
  • 4.0.37
  • 4.1.37
  • 4.2.34
  • 4.3.30
  • 4.4.29
  • 4.5.28
  • 4.6.25
  • 4.7.25
  • 4.8.21
  • 4.9.22
  • 5.0.18
  • 5.1.15
  • 5.2.17
  • 5.3.14
  • 5.4.12
  • 5.5.11
  • 5.6.10
  • 5.7.8
  • 5.8.6
  • 5.9.5
  • 6.0.3
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