Mattermost fails to perform authorization checks in the /plugins/playbooks/api/v0/runs/add-to-timeline-dialog endpoint of the Playbooks plugin allowing an attacker to get limited information about a post if they know the post ID
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "7.8.14"
},
{
"introduced": "8.0.0"
},
{
"last_affected": "8.1.5"
},
{
"introduced": "9.0.0"
},
{
"last_affected": "9.0.3"
},
{
"introduced": "9.1.1"
},
{
"last_affected": "9.1.2"
},
{
"introduced": "9.2.0"
},
{
"last_affected": "9.2.1"
}
]
}