description: Navigation events were not fully adhering to the W3C's "Navigation-Timing Level 2" draft specification in some instances for the unload event, which restricts access to detailed timing attributes to only be same-origin. This resulted in potential cross-origin information exposure of history through timing side-channel attacks. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1.
problem types: Cross-origin access to unload event attributes
affected:
{
product: Firefox
vendor: Mozilla
versions:
lessThan: 69, status: affected, version: unspecified, versionType: custom
}
{
product: Thunderbird
vendor: Mozilla
versions:
lessThan: 68.1, status: affected, version: unspecified, versionType: custom
lessThan: 60.9, status: affected, version: unspecified, versionType: custom
}
{
product: Firefox ESR
vendor: Mozilla
versions:
lessThan: 60.9, status: affected, version: unspecified, versionType: custom
lessThan: 68.1, status: affected, version: unspecified, versionType: custom
}
