CVE-2026-2476CWE-200

MS Teams plugin sensitive config values not properly masked in support packets

High · published March 16, 2026

CVSS v3.1
7.6
EPSS
0%
Percentile
7.5
In the wild
Unconfirmed
What it is

Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00183 · 7.5th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-03-16T11:11Z
EPSS history
Timeline
  • 16 MAR 11:11Z
    MS Teams plugin sensitive config values not properly masked in support packets
    cvelistv5