CVE-2002-1820 — CRITICAL severity vulnerability (register.php in Ultimate PHP Board (UPB) 1.0 and 1.0b uses a)
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."
| CVE ID | CVE-2002-1820 |
|---|---|
| Severity | CRITICAL |
| CVSS score | 9.8 |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CWE | CWE-178 |
| Status | Modified |
| Published | 2002-12-31 |
| Last modified | 2026-04-16 |
| Description | 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." |
| Source | NIST National Vulnerability Database |
🔍 Search all vulnerabilities →
$999/mo
Try CVECheck →