An attacker could cause a select dropdown to be shown over another tab; this could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 133, Firefox ESR < 128.5, Thunderbird < 133, and Thunderbird < 128.5.
{
"availability": "No subscription required",
"binaries": [
{
"binary_version": "133.0+build2-0ubuntu0.20.04.1",
"binary_name": "firefox"
},
{
"binary_version": "133.0+build2-0ubuntu0.20.04.1",
"binary_name": "firefox-dev"
},
{
"binary_version": "133.0+build2-0ubuntu0.20.04.1",
"binary_name": "firefox-geckodriver"
},
{
"binary_version": "133.0+build2-0ubuntu0.20.04.1",
"binary_name": "firefox-mozsymbols"
}
]
}