CVE-2025-8402 is a medium-severity vulnerability affecting Mattermost server versions 10.8.x, 10.5.x, 9.11.x, 10.10.x, and 10.9.x. A system administrator can crash the server by exploiting a lack of validation in the bulk import feature. With a CVSS score of 4.9, this vulnerability has a low attack complexity and requires high privileges, leading to a high impact on availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 10.5.0, <= 10.5.8CPE match | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* | ||
>= 10.8.0, <= 10.8.3CPE match | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* | ||
>= 10.9.0, <= 10.9.3CPE match | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* | ||
>= 9.11.0, <= 9.11.17CPE match | cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:* | ||
>= 9.11.0, < 9.11.18CPE matchmatch criteria | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
No social media mentions found for this CVE.
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No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.