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CVE-2023-5968
Published:November 06, 2023
Updated:April 20, 2026
Mattermost fails to properly sanitize the user object when updating the username, resulting in the password hash being included in the response body. 
Additional Notes
The description of this vulnerability differs from MITRE.
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.9
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Encoding or Escaping of Output
Exposure of Sensitive Information to an Unauthorized Actor
EPSS
Base Score:
0.14