CVE-2006-3475: Multiple PHP remote file inclusion vulnerabilities in free QBoard 1.1 allow remote attackers to execute arbitr

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HIGH 7.5DOWNGRADE

CVE-2006-3475 is a high-severity flaw (CVSS 7.5) affecting free qboard. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple PHP remote file inclusion vulnerabilities in free QBoard 1.1 allow remote attackers to execute arbitrary PHP code via a URL in the qb_path parameter to (1) index.php, (2) about.php, (3) contact.php, (4) delete.php, (5) faq.php, (6) features.php or (7) history.php, a different set of vectors than CVE-2006-2998.

Why this priority

High severity
EPSS top 5%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	8.2% (top 5%)
CISA exploited list	No
Published	2006-07-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: free qboard

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

Am I affected?

Timeline

2006-07-10 20:05 UTCPublished CVE record published
2026-06-16 22:27 UTCUpdated Record last modified

free qboard free qboard DOWNGRADE

Affected: 1.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1

1. Check installed version

apt-cache policy free-qboard || rpm -q free-qboard || free-qboard --version

2. No fixed release: DOWNGRADE to a release before 1.1 (Debian / Ubuntu)

apt-cache madison free-qboard sudo apt install free-qboard=<VERSION_BEFORE_1.1> sudo apt-mark hold free-qboard

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list free-qboard sudo dnf downgrade free-qboard-<VERSION_BEFORE_1.1> sudo dnf versionlock add free-qboard

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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: free QBoard 1.1 - 'about.php?qb_path' Remote File Inclusion
Exploit-DB: free QBoard 1.1 - 'contact.php?qb_path' Remote File Inclusion
Exploit-DB: free QBoard 1.1 - 'delete.php?qb_path' Remote File Inclusion
Exploit-DB: free QBoard 1.1 - 'faq.php?qb_path' Remote File Inclusion
Exploit-DB: free QBoard 1.1 - 'features.php?qb_path' Remote File Inclusion
Exploit-DB: free QBoard 1.1 - 'history.php?qb_path' Remote File Inclusion
Exploit-DB: free QBoard 1.1 - 'index.php?qb_path' Remote File Inclusion

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-2006-3475?

free qboard: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-3475 being exploited?

CVE-2006-3475 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-2006-3475 affect?

CVE-2006-3475 affects free qboard. Severity is high (CVSS 7.5). Multiple PHP remote file inclusion vulnerabilities in free QBoard 1.1 allow remote attackers to execute arbitrary PHP code via a URL in the qb_path parameter to (1) index.php, (2) about.php, (3) contact.php, (4) delete.php, (5) faq.php, (6)

How urgent is CVE-2006-3475?

Priority 55/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-2998 HIGH 7.5 DOWNGRADE PHP remote file inclusion vulnerability in board/post.php in free QBoard 1.1 and earlier allows remote attacke

References

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