Formwork has a cross-site scripting (XSS) vulnerability in Site title

Summary

The site title field at /panel/options/site/allows embedding JS tags, which can be used to attack all members of the system. This is a widespread attack and can cause significant damage if there is a considerable number of users.

Impact

The attack is widespread, leveraging what XSS can do. This will undoubtedly impact system availability.

Patches

• Formwork 2.x (aa3e9c6) escapes site title from panel header navigation.

Details

By embedding "<!--", the source code can be rendered non-functional, significantly impacting system availability. However, the attacker would need admin privileges, making the attack more difficult to execute.