description: When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.
problem types: Content-Security-Policy base-uri bypass
affected:
{
vendor: Mozilla
product: Firefox ESR
versions:
version: unspecified, lessThan: 102.3, status: affected, versionType: custom
}
{
vendor: Mozilla
product: Thunderbird
versions:
version: unspecified, lessThan: 102.3, status: affected, versionType: custom
}
{
vendor: Mozilla
product: Firefox
versions:
version: unspecified, lessThan: 105, status: affected, versionType: custom
}
