CVE-2025-53857 — Lack of Authorization on Get Channel Subscriptions for Autocomplete in Mattermost Confluence Plugin
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…
Published: 2025-08-11 · CVSS: 3.7 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7