CVE-2025-27936 — Webhook Secret Exposure via Timing attack in MSteams plugin
Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams p…
Published: 2025-04-16 · CVSS: 5.3 · CVSS 3.1
Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7