Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint.
{
"cwe_ids": [
"CWE-862"
],
"cna_assigner": "Mattermost",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53910.json"
}{
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
],
"cpe": "cpe:2.3:a:mattermost:confluence:*:*:*:*:*:mattermost:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.5.0"
}
]
}