VULNERABILITY INTELLIGENCE

CVE-2002-1820

CVSS score9.8 CRITICAL
EPSS probability2.38%
CISA KEVNot currently listed
Published2002-12-31
Last modified2026-06-16
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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."

Weakness classification

  • CWE-178: Improper Handling of Case Sensitivity

Primary references