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.
This vulnerability is a medium severity with CVSS 6.4 Stored Cross-Site Scripting issue affecting the Core WordPress. It affects 5.9 up to before 5.9.2 and is fixed in 5.9.2.
the tracked vulnerability is tracked for the Core WordPress as medium severity with CVSS 6.4. The affected range is 5.9 up to before 5.9.2. Update WordPress to 5.9.2 or newer where that version is compatible with the site.
| Software Type | Core |
|---|---|
| Software Slug |
wordpress
|
| CVE | No linked CVE entry. |
| Patched Versions |
5.9.2
|
| Affected Versions |
5.9 up to before 5.9.2
|
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