CVE-2025-27936 - How a Timing Attack Leaked MSTeams Plugin Webhook Secrets in Mattermost
On February 2025, Mattermost disclosed CVE-2025-27936, a serious vulnerability affecting the MS Teams Plugin (<2.1.) and the Mattermost Server (10.5.x up
CVE-2025-27538 - Exploiting Mattermost’s MFA Management Bypass (with Exploit Code & Full Explanation)
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If you use Mattermost (an open-source alternative to Slack), this vulnerability is a must-read. On February 2025, security researchers disclosed CVE-2025-27538—an authentication bug