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Incorrect Authorization

CVE-2024-9155

Medium
4.3/10

Summary

Mattermost versions 9.5.0-rc1 through 9.5.8, 9.9.0-rc1 through 9.9.2, 9.10.0-rc1 through 9.10.1 fail to limit access to channels files that have not been linked to a post which allows an attacker to view them in channels that they are a member of.

  • LOW
  • NETWORK
  • NONE
  • UNCHANGED
  • NONE
  • LOW
  • LOW
  • NONE

CWE-863 - Incorrect Authorization

Authorization is a security mechanism performed by an application to grant or deny access to the requested resources by verifying the privileges of the user. When an application lacks effective authorization mechanisms, it enables unauthorized users to gain unintended privileges and illegitimate access to resources. Such a vulnerability may result in exposure of sensitive information, denial of service, arbitrary code execution, and complete system takeover.

References

Advisory Timeline

  • Published