CVE-2025-20621
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-20621
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-20621.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-20621
- Aliases
- Downstream
- Related
- Published
- 2025-01-16T19:15:29Z
- Modified
- 2025-10-10T05:01:22.054578Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel.
- References
Affected packages
Git / github.com/mattermost/mattermost
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost
- Events
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost-server
- Events
Affected versions
@mattermost/client@10.*
@mattermost/client@10.0.0
@mattermost/client@9.*
@mattermost/client@9.11.0
@mattermost/types@10.*
@mattermost/types@10.0.0
@mattermost/types@9.*
@mattermost/types@9.11.0
v10.*
v10.0.0
v10.0.0-rc4
v10.0.1
v10.0.1-rc1
v10.0.2
v10.0.2-rc1
v10.0.2-rc2
v10.0.3
v10.0.3-rc1
v10.0.4-rc1
v10.0.4-rc2
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-rc1
v9.11.6-rc2