Mautic versions before 3.3.4/4.0.0 are vulnerable to an inline JS XSS attack when viewing Mautic assets by utilizing inline JS in the title and adding a broken image URL as a remote asset. This can only be leveraged by an authenticated user with permission to create or edit assets.
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "3.3.4"
},
{
"introduced": "0"
},
{
"last_affected": "4.0.0-alpha1"
},
{
"introduced": "0"
},
{
"last_affected": "4.0.0-beta"
},
{
"introduced": "0"
},
{
"last_affected": "4.0.0-rc"
}
]
}