Vulnerability Database

322,905

Total vulnerabilities in the database

CVE-2020-14457

An issue was discovered in Mattermost Server before 5.20.0. Non-members can receive broadcasted team details via the update_team WebSocket event, aka MMSA-2020-0012.

  • Published: Jun 19, 2020
  • Updated: Nov 16, 2025
  • CVE: CVE-2020-14457
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.3
  • AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v2:

  • Severity: Medium
  • Score: 5
  • AV:N/AC:L/Au:N/C:P/I:N/A:N

No CWE or OWASP classifications available.

Software From Fixed in
mattermost / mattermost_server - 5.20.0