An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to add DEBUG lines to the logs via a REST API version 3 logging endpoint.
{
"nvd_published_at": "2020-06-19T19:15:00Z",
"github_reviewed_at": "2026-01-12T19:28:48Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-732"
],
"severity": "MODERATE"
}