GO-2025-4050
NoneCVSS
—
EPSS
—
Published
Oct 30, 2025
CISA due date
—
The record
Mattermost Server is vulnerable to XSS through customizable theme color-code values in github.com/mattermost/mattermost-server
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 0 | 3.1.0+incompatible |
| Go | github.com/mattermost/mattermost-server | 0 | 3.1.0 |
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