WordPress Core 5.9 - 5.9.1 - Authenticated (Contributor+) Stored Cross-Site Scripting

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE Not available
CVSS Medium (6.4)
Publicly Published March 11, 2022
Last Updated January 22, 2024
Researcher Ben Bidner
Description

WordPress Core in versions 5.9 - 5.9.1 is vulnerable to Contributor+ stored Cross-Site Scripting via the double JSON encoded payloads set in the 'isGlobalStylesUserThemeJSON' parameter which is updatable via the post editor.

References

1 affected software package

Software Type Core
Software Slug wordpress (view on wordpress.org)
Patched? Yes
Affected Version
  • 5.9 - 5.9.2
Patched Version
  • 5.9.2
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