SB2020061966 - Multiple vulnerabilities in Mattermost, Mattermost Server

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2020061966

SB2020061966 - Multiple vulnerabilities in Mattermost, Mattermost Server

Published: June 19, 2020 Updated: August 8, 2020

Security Bulletin ID SB2020061966
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2019-20862)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote non-authenticated attacker to manipulate data.

An issue was discovered in Mattermost Server before 5.13.0. Non-members may fetch a team's slash commands.


2) Input validation error (CVE-ID: CVE-2019-20863)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote non-authenticated attacker to manipulate data.

An issue was discovered in Mattermost Server before 5.13.0. Incoming webhook creation is not properly restricted.


Remediation

Install update from vendor's website.

References