An attacker can use a Blind SQL injection to retrieve data or stop the MySQL service.
The problem is fixed in 4.2.1
{
"cwe_ids": [
"CWE-89"
],
"github_reviewed": true,
"github_reviewed_at": "2021-01-20T21:33:26Z",
"nvd_published_at": "2020-12-03T21:15:00Z",
"severity": "LOW"
}