CVE-2006-6790: Direct static code injection vulnerability in chat/login.php in Ultimate PHP Board (UPB) 2.0b1 and earlier all

Q: How do I fix CVE-2006-6790?

ultimate php board: upgrade to newer than 2.0_beta_1. Exact commands for each OS are on this page.

Q: Is CVE-2006-6790 being exploited?

CVE-2006-6790 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2006-6790 affect?

CVE-2006-6790 affects ultimate php board. Severity is high (CVSS 7.5). 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.

Q: How urgent is CVE-2006-6790?

Priority 52/100. High severity; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2006-6790 is a high-severity flaw (CVSS 7.5) affecting ultimate php board. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Published	2006-12-28
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ultimate php board

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2006-12-28 00:28 UTCPublished CVE record published
2026-06-16 22:33 UTCUpdated Record last modified

ultimate php board ultimate php board UPGRADE

Affected: <= 2.0_beta_1

Fixed in: newer than 2.0_beta_1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ultimate-php-board || rpm -q ultimate-php-board || ultimate-php-board --version

2. UPGRADE to newer than 2.0_beta_1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ultimate-php-board

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ultimate-php-board

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Ultimate PHP Board 2.0b1 - '/chat/login.php' Code Execution

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2006-6790?

ultimate php board: upgrade to newer than 2.0_beta_1. Exact commands for each OS are on this page.

Is CVE-2006-6790 being exploited?

CVE-2006-6790 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2006-6790 affect?

CVE-2006-6790 affects ultimate php board. Severity is high (CVSS 7.5). 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.

How urgent is CVE-2006-6790?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

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References

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