An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. It allows XSS via an uploaded file.
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "3.9.2"
},
{
"introduced": "3.10.0"
},
{
"fixed": "3.10.2"
}
]
}