Sync Message Validation Issue in Mattermost by Mattermost
CVE-2024-41926

4.3MEDIUM

Key Information:

Vendor
Mattermost
Status
Mattermost Server
Vendor
CVE Published:
1 August 2024

Summary

Certain versions of Mattermost, specifically those in the 9.9.x range up to 9.9.0 and 9.5.x range up to 9.5.6, suffer from a validation issue regarding sync messages. This flaw permits a malicious remote entity to submit arbitrary RemoteId values, potentially allowing them to incorrectly assert that a user was synced from a different remote source. Such an exploit could compromise user integrity and lead to unauthorized access scenarios.

References

https://mattermost.com/security-updates

CVSS V3.1

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

Timeline

  • Vulnerability published

.