CVE-2019-9807

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 66

Description The issue is related to the FTP protocol in Firefox, where an error in initiating a modal notification can occur when a page reload is initiated, allowing arbitrary text sent over an FTP connection to be displayed in a modal alert message. This could potentially be used for social engineering attacks. The exploitation of this issue may allow a remote attacker to impact data integrity.

Recommendations For versions prior to 66, update to version 66 or later to resolve the issue.