The Guest account feature in Mattermost version 6.7.0 and earlier fails to properly restrict the permissions, which allows a guest user to fetch a list of all public channels in the team, in spite of not being part of those channels.
{
"cwe_ids": [
"CWE-200"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2408.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"last_affected": "6.3.8"
},
{
"introduced": "6.4.x"
},
{
"last_affected": "6.4.x"
},
{
"introduced": "6.7.x 6.7.0"
},
{
"last_affected": "6.7.x 6.7.0"
},
{
"introduced": "6.5.x"
},
{
"last_affected": "6.5.1"
},
{
"introduced": "6.6.x"
},
{
"last_affected": "6.6.1"
}
],
"source": "AFFECTED_FIELD"
}
],
"cna_assigner": "Mattermost"
}{
"cpe": [
"cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*",
"cpe:2.3:a:mattermost:mattermost:6.6.0:*:*:*:*:*:*:*",
"cpe:2.3:a:mattermost:mattermost:6.6.1:*:*:*:*:*:*:*",
"cpe:2.3:a:mattermost:mattermost:6.7.0:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "6.3.8"
},
{
"introduced": "6.4.0"
},
{
"last_affected": "6.5.1"
},
{
"introduced": "6.6.0"
},
{
"last_affected": "6.6.0"
},
{
"introduced": "6.6.1"
},
{
"last_affected": "6.6.1"
},
{
"introduced": "6.7.0"
},
{
"last_affected": "6.7.0"
}
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}