CVE-2025-55073
Published: Nov 14, 2025
Modified: Nov 14, 2025
CVSS v3.1
5.4
Description
Mattermost versions 10.11.x <= 10.11.3, 10.5.x <= 10.5.11, 10.12.x <= 10.12.0 fail to validate the relationship between the post being updated and the MSTeams plugin OAuth flow which allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL.
| Vendor | Product | Versions |
|---|---|---|
Mattermost | Mattermost | affected 10.11.0 - <= 10.11.3affected 10.5.0 - <= 10.5.11affected 10.12.0 - <= 10.12.0unaffected 11.0.0unaffected 10.11.4+2 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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