Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.6%
CVSS Severity
CVSS v3 Score 3.7
References
Products affected by CVE-2025-53857
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cpe:2.3:a:mattermost:confluence:*