GO-2025-4129Published
Mattermost allows an attacker to edit arbitrary posts via a crafted MSTeams plugin OAuth redirect URL in github.com/mattermost/mattermost-server
Exact source revision recorded 24 Oct 2026 13:19:41 UTC. It does not establish the source's current position. Latest evidence.
Explicit identifiers and source references
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CVE-2025-55073 · Microsoft / collected KEV context
osv · GO-2025-4129
- https://github.com/advisories/GHSA-ff85-qw3h-g9vp
- https://nvd.nist.gov/vuln/detail/CVE-2025-55073
- https://github.com/mattermost/mattermost/commit/375ce229f4923205394d8f27925372b2cbf28130
- https://github.com/mattermost/mattermost/commit/6c288aa62bb3343183ec1d0a06360d14aa0193e9
- https://github.com/mattermost/mattermost/commit/a41db04d2746ab549d056db4ede4cd803f64989c
- https://github.com/mattermost/mattermost/commit/b822cea06bf5683a176e2c92711241bd29cd9389
- https://github.com/mattermost/mattermost/commit/e47349ea0fc072ee1dfb196d9bb1c8fd1a589224
- https://mattermost.com/security-updates
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