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register.php in Ultimate PHP Board (UPB) 1.0 and 1.0b...

High severity Unreviewed Published Apr 30, 2022 to the GitHub Advisory Database • Updated Mar 22, 2026

Package

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Affected versions

Unknown

Patched versions

Unknown

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."

References

Published by the National Vulnerability Database Dec 31, 2002
Published to the GitHub Advisory Database Apr 30, 2022
Last updated Mar 22, 2026

Severity

High

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(82nd percentile)

Weaknesses

Improper Handling of Case Sensitivity

The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results. Learn more on MITRE.

CVE ID

CVE-2002-1820

GHSA ID

GHSA-6c7r-27gf-58jj

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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