Mattermost Confluence Plugin has Missing Authorization vulnerability

Mattermost Confluence Plugin versions 1.5.0 fail to check user access to the channel, allowing attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint...

Missing Authorization

Overview Affected versions of this package are vulnerable to Missing Authorization via the GET autocomplete/GetChannelSubscriptions endpoint. An attacker can retrieve channel subscription details by making unauthorized API calls. Remediation Upgrade...

GHSA-42M6-5VM7-FJV2 Mattermost Confluence Plugin has Missing Authorization vulnerability

Mattermost Confluence Plugin versions 1.5.0 fail to check user access to the channel, allowing attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint...

CVE-2025-53857

Mattermost Confluence Plugin version 1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint...

CVE-2025-53857

Mattermost Confluence Plugin version 1.5.0 fails to check the access of the user to the channel which allows attackers to get channel subscription details without proper access to the channel via API call to the GET autocomplete/GetChannelSubscriptions endpoint...