CVE-2025-53971

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Source
https://cve.org/CVERecord?id=CVE-2025-53971
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-53971.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-53971
Aliases
Published
2025-08-21T07:31:01.870Z
Modified
2026-07-08T06:51:32.984983Z
Severity
  • 3.8 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
Channel and Team Membership APIs inadvertently allow loss of Member privileges.
Details

Mattermost versions 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate authorization for team scheme role modifications which allows Team Admins to demote Team Members to Guests via the PUT /api/v4/teams/team-id/members/user-id/schemeRoles API endpoint.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "10.5.0"
                },
                {
                    "last_affected": "10.5.8"
                },
                {
                    "introduced": "9.11.0"
                },
                {
                    "last_affected": "9.11.17"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53971.json",
    "cna_assigner": "Mattermost",
    "cwe_ids": [
        "CWE-863"
    ]
}
References

Affected packages

Git / github.com/mattermost/mattermost

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost
Events
Introduced
0bc2ddd42375a75ab14e63f038165150d4f07659
Fixed
11c36f4d1e44c36a85aa682becaa7519f63761cf
Introduced
58bd34fd34cbd7d3da777d627b6cffdf8a532930
Fixed
c602a4a78e1f60b9a97ee5bce509ecad4177340c
Database specific 
{
    "source": "CPE_RANGE",
    "cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "9.11.0"
        },
        {
            "fixed": "9.11.18"
        },
        {
            "introduced": "10.5.0"
        },
        {
            "fixed": "10.5.9"
        }
    ]
}

Affected versions

@mattermost/client@10.*
@mattermost/client@10.5.0
@mattermost/client@9.*
@mattermost/client@9.11.0
@mattermost/types@10.*
@mattermost/types@10.5.0
@mattermost/types@9.*
@mattermost/types@9.11.0
v10.*
v10.5.0
v10.5.0-rc6
v10.5.1
v10.5.1-rc1
v10.5.1-rc2
v10.5.2
v10.5.3
v10.5.3-rc1
v10.5.4
v10.5.4-rc1
v10.5.4-rc2
v10.5.5
v10.5.5-rc1
v10.5.6
v10.5.6-rc1
v10.5.7
v10.5.8
v10.5.8-rc1
v10.5.9-rc1
v10.5.9-rc2
v10.5.9-rc3
v10.5.9-rc4
v9.*
v9.11.0
v9.11.0-rc3
v9.11.1
v9.11.1-rc1
v9.11.10
v9.11.10-rc1
v9.11.11
v9.11.11-rc1
v9.11.12
v9.11.12-rc1
v9.11.13
v9.11.13-rc1
v9.11.14
v9.11.15
v9.11.16
v9.11.16-rc1
v9.11.17
v9.11.17-rc1
v9.11.18-rc1
v9.11.18-rc2
v9.11.18-rc3
v9.11.18-rc4
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
v9.11.9-rc1
v9.11.9-rc2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-53971.json"