CVE-2006-5637: PHP remote file inclusion vulnerability in faq_reply.php in Faq Administrator 2.1b allows remote attackers to

This month

HIGH 7.5DOWNGRADE

CVE-2006-5637 is a high-severity flaw (CVSS 7.5) affecting faq administrator. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in faq_reply.php in Faq Administrator 2.1b allows remote attackers to execute arbitrary PHP code via a URL in the email parameter.

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	3.4% (top 11%)
CISA exploited list	No
Published	2006-11-01
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: faq administrator

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

Am I affected?

Timeline

2006-11-01 00:07 UTCPublished CVE record published
2026-06-16 22:31 UTCUpdated Record last modified

faq administrator faq administrator DOWNGRADE

Affected: 2.1b

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1b

1. Check installed version

apt-cache policy faq-administrator || rpm -q faq-administrator || faq-administrator --version

2. No fixed release: DOWNGRADE to a release before 2.1b (Debian / Ubuntu)

apt-cache madison faq-administrator sudo apt install faq-administrator=<VERSION_BEFORE_2.1b> sudo apt-mark hold faq-administrator

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

dnf --showduplicates list faq-administrator sudo dnf downgrade faq-administrator-<VERSION_BEFORE_2.1b> sudo dnf versionlock add faq-administrator

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: Faq Administrator 2.1 - 'faq_reply.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-2006-5637?

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

Is CVE-2006-5637 being exploited?

CVE-2006-5637 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-2006-5637 affect?

CVE-2006-5637 affects faq administrator. Severity is high (CVSS 7.5). PHP remote file inclusion vulnerability in faq_reply.php in Faq Administrator 2.1b allows remote attackers to execute arbitrary PHP code via a URL in the email parameter.

How urgent is CVE-2006-5637?

Priority 53/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

← Back to latest CVEs