Security Vulnerabilities
Mattermost versions <11 fail to enforce multi-factor authentication on WebSocket connections which allows unauthenticated users to access sensitive information via WebSocket events
CVSS Score
6.5
EPSS Score
0.001
Published
2025-11-14
Mattermost versions <11 fail to properly restrict access to archived channel search API which allows guest users to discover archived public channels via the `/api/v4/teams/{team_id}/channels/search_archived` endpoint
CVSS Score
4.3
EPSS Score
0.0
Published
2025-11-14
Out of bounds read in V8 in Google Chrome prior to 133.0.6943.141 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
CVSS Score
4.3
EPSS Score
0.001
Published
2025-11-14
Inappropriate implementation in DevTools in Google Chrome prior to 136.0.7103.59 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
CVSS Score
5.4
EPSS Score
0.0
Published
2025-11-14
Inappropriate implementation in WebApp Installs in Google Chrome on Android prior to 134.0.6998.35 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
CVSS Score
4.3
EPSS Score
0.001
Published
2025-11-14
Inappropriate implementation in Compositing in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
CVSS Score
4.3
EPSS Score
0.001
Published
2025-11-14
Inappropriate implementation in Dawn in Google Chrome on Mac prior to 130.0.6723.92 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)
CVSS Score
4.3
EPSS Score
0.001
Published
2025-11-14
Inappropriate implementation in Fullscreen in Google Chrome prior to 128.0.6613.84 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)
CVSS Score
4.3
EPSS Score
0.001
Published
2025-11-14
Inappropriate implementation in Lens in Google Chrome on iOS prior to 136.0.7103.59 allowed a remote attacker to perform UI spoofing via a crafted QR code. (Chromium security severity: Low)
CVSS Score
6.3
EPSS Score
0.001
Published
2025-11-14
Inappropriate implementation in DevTools in Google Chrome prior to 126.0.6478.182 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
CVSS Score
7.5
EPSS Score
0.001
Published
2025-11-14