Mattermost versions 9.5.x <= 9.5.3, 9.6.x <= 9.6.1 and 8.1.x <= 8.1.12 fail to perform proper input validation on post actions which allows an attacker to run a playbook checklist task command as another user via creating and sharing a deceptive post action that unexpectedly runs a slash command in some arbitrary channel.
{
"cwe_ids": [
"CWE-352"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36255.json",
"cna_assigner": "Mattermost",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "9.5.0"
},
{
"last_affected": "9.5.3"
},
{
"introduced": "9.6.0"
},
{
"last_affected": "9.6.1"
},
{
"introduced": "8.1.0"
},
{
"last_affected": "8.1.12"
}
],
"source": "AFFECTED_FIELD"
}
]
}{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "8.1.0"
},
{
"fixed": "8.1.13"
},
{
"introduced": "9.5.0"
},
{
"fixed": "9.5.4"
},
{
"introduced": "9.6.0"
},
{
"fixed": "9.6.2"
}
],
"source": "CPE_RANGE"
}