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 validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the frontend via crafted malicious input.
{
"severity": "MODERATE",
"nvd_published_at": "2025-01-15T16:15:32Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-704"
],
"github_reviewed_at": "2025-01-15T20:06:54Z"
}