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CVE-2025-20621
Good to know:
Date: January 16, 2025
Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel.
Severity Score
Severity Score
Weakness Type (CWE)
Improper Validation of Specified Type of Input
CWE-1287Top Fix
Upgrade Version
Upgrade to version github.com/mattermost/mattermost/server/v8 - v8.0.0-20241127161322-25ff7a3779a5
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | LOW |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | HIGH |