Vulnerability DatabaseCVE-2025-53857
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CVE-2025-53857
August 11, 2025
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.
Affected Packages
github.com/mattermost/mattermost-plugin-confluence (GO):
Affected version(s) >=v0.1.0-rc1 <v1.5.0
Fix Suggestion:
Update to version v1.5.0
Related Resources (3)
https://nvd.nist.gov/vuln/detail/CVE-2025-53857
https://mattermost.com/security-updates
https://github.com/mattermost/mattermost-plugin-confluence
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CVSS v4
Base Score:
6.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
3.7
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Missing Authorization
CWE-862
EPSS
Base Score:
0.03