Vulnerability DatabaseCVE-2025-13767
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CVE-2025-13767
December 24, 2025
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fails to validate user channel membership when attaching Mattermost posts as comments to Jira issues, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to.
Affected Packages
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v10.12.0 <v10.12.4
Fix Suggestion:
Update to version v10.12.4
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v11.1.0 <v11.1.1
Fix Suggestion:
Update to version v11.1.1
github.com/mattermost/mattermost (GO):
Affected version(s) =v11.1.0 <v11.1.1
Fix Suggestion:
Update to version v11.1.1
github.com/mattermost/mattermost (GO):
Affected version(s) >=v11.0.1-rc1 <v11.0.6
Fix Suggestion:
Update to version v11.0.6
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v10.11.0 <v10.11.8
Fix Suggestion:
Update to version v10.11.8
github.com/mattermost/mattermost (GO):
Affected version(s) >=v10.11.0 <v10.11.8
Fix Suggestion:
Update to version v10.11.8
github.com/mattermost/mattermost-server (GO):
Affected version(s) >=v11.0.1-rc1 <v11.0.6
Fix Suggestion:
Update to version v11.0.6
github.com/mattermost/mattermost (GO):
Affected version(s) >=v10.12.0 <v10.12.4
Fix Suggestion:
Update to version v10.12.4
Related Resources (7)
https://github.com/mattermost/mattermost
https://nvd.nist.gov/vuln/detail/CVE-2025-13767
https://pkg.go.dev/vuln/GO-2026-4259
https://github.com/mattermost/mattermost/commit/b57c297c6d7ae6812d85e32a625806ac9555deee
https://github.com/advisories/GHSA-fmqf-pmcm-8cx9
https://mattermost.com/security-updates
https://github.com/mattermost/mattermost/pull/34551
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CVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
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:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
CWE-863
EPSS
Base Score:
0.03