description: Firefox did not block execution of scripts with incorrect MIME types when the response was intercepted and cached through a ServiceWorker. This could lead to a cross-site script inclusion vulnerability, or a Content Security Policy bypass. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.
problem types: Requests intercepted through ServiceWorkers lacked MIME type restrictions
affected:
{
product: Firefox
vendor: Mozilla
versions:
status: affected, version: < 83
}
{
product: Firefox ESR
vendor: Mozilla
versions:
status: affected, version: < 78.5
}
{
product: Thunderbird
vendor: Mozilla
versions:
status: affected, version: < 78.5
}
