2025-01-15 15:51:49
Mattermost
PUBLISHED
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 actions style in post.props.attachments, which allows an attacker to crash the frontend via crafted malicious input.