CVE-2025-27715

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Source
https://cve.org/CVERecord?id=CVE-2025-27715
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27715.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-27715
Aliases
Downstream
Related
Published
2025-03-21T08:22:25.321Z
Modified
2026-07-15T01:49:08.474789994Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
Auto-Enrollment of Team Admins into Private Channels without explicit consent
Details

Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.

Database specific 
{
    "cwe_ids": [
        "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/27xxx/CVE-2025-27715.json",
    "cna_assigner": "Mattermost",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "9.11.0"
                },
                {
                    "last_affected": "9.11.8"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/mattermost/mattermost

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost
Events
Introduced
0bc2ddd42375a75ab14e63f038165150d4f07659
Fixed
07bb4f96ed7400080f2ded5e910a947b8e6c168f
Database specific 
{
    "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "9.11.0"
        },
        {
            "fixed": "9.11.9"
        }
    ]
}

Affected versions

@mattermost/client@9.*
@mattermost/client@9.11.0
@mattermost/types@9.*
@mattermost/types@9.11.0
v9.*
v9.11.0
v9.11.0-rc3
v9.11.1
v9.11.1-rc1
v9.11.2
v9.11.2-rc1
v9.11.2-rc2
v9.11.3
v9.11.3-rc1
v9.11.3-rc2
v9.11.4
v9.11.4-rc1
v9.11.5
v9.11.5-rc1
v9.11.6
v9.11.6-rc1
v9.11.6-rc2
v9.11.7
v9.11.7-rc1
v9.11.7-rc2
v9.11.7-rc3
v9.11.8
v9.11.9-rc1
v9.11.9-rc2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27715.json"