CVE-2002-1820

CRITICAL · CVSS 9.8 EPSS 2.38%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2002-12-31 · Last synced 2026-08-04

Field Assessment

AI analysis pending.

CVE

CVE-2002-1820

Severity

CRITICAL

CVSS

9.8

EPSS

2.38%

Original Filing — NVD 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."