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Incorrect Authorization

CVE-2025-64641

Medium
4.1/10

Summary

Mattermost versions 11.1.x through 11.1.0, 11.0.x through 11.0.5, 10.12.x through 10.12.3, and 10.11.x through 10.11.7 fail to verify that post actions invoking "/share-issue-publicly" were created by the Jira plugin which allowed a malicious Mattermost user to exfiltrate Jira tickets when victim users interacted with affected posts. The package 'github.com/mattermost/mattermost-plugin-jira' is also affected in versions through 4.4.0.

  • LOW
  • NETWORK
  • NONE
  • CHANGED
  • REQUIRED
  • 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