Improper Access Control in Mattermost Products by Mattermost
CVE-2025-3228

4.3MEDIUM

Key Information:

Vendor

Mattermost
Status
Mattermost
Vendor
CVE Published:
20 June 2025

What is CVE-2025-3228?

Certain versions of Mattermost products exhibit improper access control due to failures in fetching requestorInfo from the playbooks handler for guest users. This security flaw enables potential attackers to gain unauthorized access to playbook runs, raising significant concerns for data integrity and system security. It is advisable for users running affected versions to implement corrective actions promptly to mitigate the risks associated with this vulnerability.

Affected Version(s)

Mattermost 10.5.0 <= 10.5.5

Mattermost 9.11.0 <= 9.11.15

Mattermost 10.8.0

References

https://mattermost.com/security-updates

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

hackit_bharat
.