CVE-2025-49222
- Source
- https://cve.org/CVERecord?id=CVE-2025-49222
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-49222.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-49222
- Aliases
- Published
- 2025-08-21T07:59:45.057Z
- Modified
- 2026-07-15T02:15:26.494861753Z
- Severity
-
- 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- Mattermost Shared Channel Upload Type Validation Bypass
- Details
-
Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.9.x <= 10.9.2, 10.10.x <= 10.10.0 fail to validate upload types in remote cluster upload sessions which allows a system admin to upload non-attachment file types via shared channels that could potentially be placed in arbitrary filesystem directories.
- Database specific
{ "unresolved_ranges": [ { "extracted_events": [ { "introduced": "10.8.0" }, { "last_affected": "10.8.3" }, { "introduced": "10.5.0" }, { "last_affected": "10.5.8" }, { "introduced": "9.11.0" }, { "last_affected": "9.11.17" }, { "introduced": "10.9.0" }, { "last_affected": "10.9.2" }, { "introduced": "10.10.0" }, { "last_affected": "10.10.0" } ], "source": "AFFECTED_FIELD" } ], "cwe_ids": [ "CWE-434" ], "cna_assigner": "Mattermost", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/49xxx/CVE-2025-49222.json" }- References
Affected packages
Git / github.com/mattermost/mattermost
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost
- Events
-
IntroducedFixedIntroducedFixedIntroducedFixedIntroducedFixedIntroducedLast affected
- Database specific
{ "extracted_events": [ { "introduced": "9.11.0" }, { "fixed": "9.11.18" }, { "introduced": "10.5.0" }, { "fixed": "10.5.9" }, { "introduced": "10.8.0" }, { "fixed": "10.8.4" }, { "introduced": "10.9.0" }, { "fixed": "10.9.3" }, { "introduced": "10.10.0-NA" }, { "last_affected": "10.10.0-NA" } ], "cpe": [ "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*", "cpe:2.3:a:mattermost:mattermost_server:10.10.0:-:*:*:*:*:*:*" ], "source": [ "CPE_RANGE", "CPE_STRING" ] }
Affected versions
10.*
10.10.0-NA
@mattermost/client@10.*
@mattermost/client@10.5.0
@mattermost/client@10.8.0
@mattermost/client@9.*
@mattermost/client@9.11.0
@mattermost/types@10.*
@mattermost/types@10.5.0
@mattermost/types@10.8.0
@mattermost/types@9.*
@mattermost/types@9.11.0
mattermost-redux@10.*
mattermost-redux@10.8.0
v10.*
v10.10.0
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
v10.8.0
v10.8.0-rc3
v10.8.1
v10.8.2
v10.8.3
v10.8.4-rc1
v10.8.4-rc2
v10.8.4-rc3
v10.8.4-rc4
v10.9.0
v10.9.0-rc4
v10.9.1
v10.9.2
v10.9.2-rc1
v10.9.3-rc1
v10.9.3-rc2
v10.9.3-rc3
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