An issue exists in Mattermost Server prior to 4.3.0, 4.2.1, and 4.1.2. An attacker could create fictive system-message posts via webhooks and slash commands, in the v3 or v4 REST API.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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mattermost mattermost server |
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mattermost mattermost server 4.3.0 |