CVE-2024-39839

Aug. 1, 2024, 4:45 p.m.

4.3
Medium

Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5, 9.8.x <= 9.8.1 fail to disallow users to set their own remote username, when shared channels were enabled, which allows a user on a remote to set their remote username prop to an arbitrary string, which would be then synced to the local server as long as the user hadn't been synced before.

Product(s) Impacted

Product Versions
Mattermost
  • ['9.5.0 - 9.5.6', '9.7.0 - 9.7.5', '9.8.0 - 9.8.1', '9.9.0']

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-284
Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

References

https://mattermost.com/security-updates

Tags

CWE-284
responsibledisclosure@mattermost.com
2024-08-01
CVE-2024-39839

CVSS Score

4.3 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: LOW
  • Availability Impact: NONE

    • CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

    View Vector String

Timeline

Published: Aug. 1, 2024, 3:15 p.m.
Last Modified: Aug. 1, 2024, 4:45 p.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

responsibledisclosure@mattermost.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.