Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Craft is a platform for creating digital experiences. When you insert a payload inside a label name or instruction of an entry type, an cross-site scripting (XSS) happens in the quick post widget on the admin dashboard. This issue has been fixed in version 4.3.7.
All versions before 4.3.7
Upgrade to version 4.3.7 or above.