CVE-2006-2683: PHP remote file inclusion vulnerability in 404.php in open-medium.CMS 0.25 allows remote attackers to execute

This month

MEDIUM 6.4DOWNGRADE

CVE-2006-2683 is a medium-severity flaw (CVSS 6.4) affecting open-medium cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in 404.php in open-medium.CMS 0.25 allows remote attackers to execute arbitrary PHP code via a URL in the REDSYS[MYPATH][TEMPLATES] parameter.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.4 (Medium)
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Published	2006-05-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: open-medium

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

Am I affected?

Timeline

2006-05-31 10:06 UTCPublished CVE record published
2026-06-16 22:25 UTCUpdated Record last modified

open-medium open-medium cms DOWNGRADE

Affected: 0.25

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.25

1. Check installed version

apt-cache policy open-medium-cms || rpm -q open-medium-cms || open-medium-cms --version

2. No fixed release: DOWNGRADE to a release before 0.25 (Debian / Ubuntu)

apt-cache madison open-medium-cms sudo apt install open-medium-cms=<VERSION_BEFORE_0.25> sudo apt-mark hold open-medium-cms

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

dnf --showduplicates list open-medium-cms sudo dnf downgrade open-medium-cms-<VERSION_BEFORE_0.25> sudo dnf versionlock add open-medium-cms

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: open-medium.CMS 0.25 - '404.php' 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-2006-2683?

open-medium cms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-2683 being exploited?

CVE-2006-2683 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-2006-2683 affect?

CVE-2006-2683 affects open-medium cms. Severity is medium (CVSS 6.4). PHP remote file inclusion vulnerability in 404.php in open-medium.CMS 0.25 allows remote attackers to execute arbitrary PHP code via a URL in the REDSYS[MYPATH][TEMPLATES] parameter.

How urgent is CVE-2006-2683?

Priority 48/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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