CVE-2003-1406: PHP remote file inclusion vulnerability in D-Forum 1.00 through 1.11 allows remote attackers to execute arbitr

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HIGH 7.5DOWNGRADE

CVE-2003-1406 is a high-severity flaw (CVSS 7.5) affecting d forum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in D-Forum 1.00 through 1.11 allows remote attackers to execute arbitrary PHP code via a URL in the (1) my_header parameter to header.php3 or (2) my_footer parameter to footer.php3.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-94
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: adalis infomatique

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

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:04 UTCUpdated Record last modified

adalis infomatique d forum DOWNGRADE

Affected: 1.0 · 1.10 · 1.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy d-forum || rpm -q d-forum || d-forum --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison d-forum sudo apt install d-forum=<VERSION_BEFORE_1.0> sudo apt-mark hold d-forum

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

dnf --showduplicates list d-forum sudo dnf downgrade d-forum-<VERSION_BEFORE_1.0> sudo dnf versionlock add d-forum

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: D-Forum 1 - 'footer' Remote File Inclusion
Exploit-DB: D-Forum 1 - 'header' 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-2003-1406?

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

Is CVE-2003-1406 being exploited?

CVE-2003-1406 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-2003-1406 affect?

CVE-2003-1406 affects d forum. Severity is high (CVSS 7.5). PHP remote file inclusion vulnerability in D-Forum 1.00 through 1.11 allows remote attackers to execute arbitrary PHP code via a URL in the (1) my_header parameter to header.php3 or (2) my_footer parameter to footer.php3.

How urgent is CVE-2003-1406?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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