A custom URL scheme handling issue was addressed with improved input validation. This issue is fixed in Safari 13.0.5. Processing a maliciously crafted URL may lead to arbitrary javascript code execution.
[
{
"product": "Safari",
"vendor": "Apple",
"versions": [
{
"lessThan": "13.0",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]