Vulnerability Database

299,759

Total vulnerabilities in the database

CVE-2019-20884

An issue was discovered in Mattermost Server before 5.8.0. It allows attackers to partially attach a file to more than one post.

  • Published: Jun 19, 2020
  • Updated: Nov 9, 2025
  • CVE: CVE-2019-20884
  • Severity: Medium
  • Exploit:

CVSS v3:

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

CVSS v2:

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

No CWE or OWASP classifications available.

Software From Fixed in
mattermost / mattermost_server - 5.8.0