When creating a playbook run via the /dialog API, Mattermost fails to validate all parameters, allowing an authenticated attacker to edit an arbitrary channel post.
{
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "7.9.2"
},
{
"fixed": "7.8.3"
},
{
"fixed": "7.7.4"
},
{
"fixed": "7.10.1"
}
],
"source": "AFFECTED_FIELD"
}
],
"cwe_ids": [
"CWE-862"
],
"cna_assigner": "Mattermost",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/2xxx/CVE-2023-2791.json"
}{
"cpe": [
"cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
"cpe:2.3:a:mattermost:mattermost:7.10.0:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "7.7.0"
},
{
"last_affected": "7.7.3"
},
{
"introduced": "7.8.0"
},
{
"last_affected": "7.8.2"
},
{
"introduced": "7.9.0"
},
{
"last_affected": "7.9.1"
},
{
"introduced": "7.10.0"
},
{
"last_affected": "7.10.0"
}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}