description: A mechanism to bypass file system access protections in the sandbox to use the file picker to access different files than those selected in the file picker through the use of relative paths. This allows for read only access to the local file system. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.
problem types: Sandbox escape allowing file system read access through file picker
affected:
{
product: Thunderbird
vendor: Mozilla
versions:
lessThan: 52.1, status: affected, version: unspecified, versionType: custom
}
{
product: Firefox ESR
vendor: Mozilla
versions:
lessThan: 52.1, status: affected, version: unspecified, versionType: custom
}
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 53, status: affected, version: unspecified, versionType: custom
}
