Vulnerability Database

322,905

Total vulnerabilities in the database

CVE-2020-14447

An issue was discovered in Mattermost Server before 5.23.0. Large webhook requests allow attackers to cause a denial of service (infinite loop), aka MMSA-2020-0021.

  • Published: Jun 19, 2020
  • Updated: Nov 16, 2025
  • CVE: CVE-2020-14447
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v2:

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

CWEs:

Software From Fixed in
mattermost / mattermost_server - 5.23.0