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

Wordfence Intelligence   >   Vulnerability Database   >   WordPress Core < 6.0.3 - Authenticated (Admin+) Stored Cross-Site Scripting via Customizer
5.5
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS 5.5 (Medium)
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.

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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: 3.7.40, 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
Affected Versions
  • <= 3.6.1
  • 5.6 - 5.6.9
  • 5.7 - 5.7.7
  • 5.8 - 5.8.5
Expand to see 21 more affected version ranges.
  • 5.9 - 5.9.4
  • 6.0 - 6.0.2
  • 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
Patched Versions
  • 3.7.40
  • 3.8.40
  • 3.9.38
  • 4.0.37
Expand to see 20 more patched versions.
  • 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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