EUVD-2025-186555Published
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 …
Exact source revision recorded 7 Nov 2026 02:40:11 UTC. It does not establish the source's current position. Latest evidence.
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CVE-2025-55073 · Microsoft / collected KEV context
euvd · EUVD-2025-186555
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