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CVE-2025-20621

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CVE-2025-20621

Published: Jan 16, 2025

Modified: Jan 16, 2025

PUBLISHED

CVSS v3.1

6.5

MEDIUM

Description

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.

VendorProductVersions

Mattermost

Mattermost

affected
10.2.0 - <= 10.2.0
affected
9.11.0 - <= 9.11.5
affected
10.0.0 - <= 10.0.3
affected
10.1.0 - <= 10.1.3
unaffected
10.3.0

+5 more versions

Weaknesses (CWE)

CWE-1287

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

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