WordPress · Tinymce Custom Styles · CVE-2023-2967
**Name of the Vulnerable Software and Affected Versions**
TinyMCE Custom Styles WordPress plugin versions prior to 1.1.4
**Description**
The issue allows high privilege users, such as admins, to perform Stored Cross-Site Scripting attacks, even when the unfiltered html capability is disallowed, for example, in a multisite setup. This is due to the plugin not sanitizing and escaping some of its settings.
**Recommendations**
For versions prior to 1.1.4, update to version 1.1.4 or later to resolve the issue. As a temporary workaround, consider restricting the use of the plugin's settings to minimize the risk of exploitation.