CVE-2025-20621
—CVSS 3.1
7.5 high
EPSS
<1%p38
Published
()
Modified
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.
- Vendors
- mattermost
- Products
- mattermost server
- Weakness
- CWE-1287
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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