Mattermost fails to check if hardened mode is enabled when overriding the username and/or the icon when posting a post. If settings allowed integrations to override the username and profile picture when posting, a member could also override the username and icon when making a post even if the Hardened Mode setting was enabled
{
"severity": "MODERATE",
"nvd_published_at": "2023-11-27T09:15:32Z",
"github_reviewed": true,
"github_reviewed_at": "2023-11-28T20:50:05Z",
"cwe_ids": [
"CWE-284"
]
}