register.php in Ultimate PHP Board (UPB) 1.0 and 1.0b uses an administrative account Admin with a capital "A," but allows a remote attacker to impersonate the administrator by registering an account name of admin with a lower case "a."
Score: 0.0
Priority: Unclassified
Score: 0.01529
Percentile:
0.80491
CVSS v3.1 Score: 9.8
Severity: CRITICAL