Is CVE-2006-6790 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2006-6790, but active exploitation has not been confirmed.

Can CVE-2006-6790 be exploited remotely?

Yes. CVE-2006-6790 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2006-6790?

CVE-2006-6790 has a CVSS score of 7.5 (HIGH).

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HIGHPOC

CVE-2006-6790

NVD-CWE-OtherPublished: December 28, 2006· Updated: Jun 16, 2026

7.5

CVSS v3.1

Official Description

Direct static code injection vulnerability in chat/login.php in Ultimate PHP Board (UPB) 2.0b1 and earlier allows remote attackers to inject arbitrary PHP code via the username parameter, which is injected into chat/text.php.

NVD Source

Technical Analysis

CVE-2006-6790 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2006-6790. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.