Roundcube Webmail before 1.5.13 and 1.6 before 1.6.13 allows Cascading Style Sheets (CSS) injection, e.g., because comments are mishandled.
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "1.5.13"
},
{
"introduced": "1.6"
},
{
"fixed": "1.6.13"
}
]
}