Post Prop Validation Flaw in Mattermost by Mattermost, Inc.
CVE-2025-20086

6.5MEDIUM

Key Information:

Vendor
Mattermost
Status
Mattermost
Vendor
CVE Published:
15 January 2025

Summary

Mattermost platforms, specifically versions 10.2.x through 10.2.0, 9.11.x through 9.11.5, 10.0.x through 10.0.3, and 10.1.x through 10.1.3 are susceptible to a vulnerability due to insufficient validation of post properties. This flaw permits a malicious authenticated user to craft a post that could lead to a system crash, potentially causing denial of service and impacting availability.

Affected Version(s)

Mattermost 10.2.0

Mattermost 9.11.0 <= 9.11.5

Mattermost 10.0.0 <= 10.0.3

References

https://mattermost.com/security-updates

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

c0rydoras (c0rydoras)
.