description: If the source for resources on a page is through an FTP connection, it is possible to trigger a series of modal alert messages for these resources through invalid credentials or locations. These messages cannot be immediately dismissed, allowing for a denial of service (DOS) attack. This vulnerability affects Firefox < 66.
problem types: Denial of service through FTP modal alert error messages
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 66, status: affected, version: unspecified, versionType: custom
}