Cross-site scripting (XSS) vulnerability in the Troubleshooting Reporting System feature in AgileBits 1Password 3.9.9 might allow remote attackers to inject arbitrary web script or HTML via a crafted User-Agent HTTP header that is not properly handled in a View Troubleshooting Report action.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.