CVE-2009-0495: PHP remote file inclusion vulnerability in include/define.php in REALTOR 747 4.11 allows remote attackers to e

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HIGH 7.5DOWNGRADE

CVE-2009-0495 is a high-severity flaw (CVSS 7.5) affecting realtor 747. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in include/define.php in REALTOR 747 4.11 allows remote attackers to execute arbitrary PHP code via a URL in the INC_DIR 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	2.1% (top 18%)
CISA exploited list	No
Weakness	CWE-94
Published	2009-02-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: it747

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

Am I affected?

Timeline

2009-02-10 01:30 UTCPublished CVE record published
2026-06-16 23:05 UTCUpdated Record last modified

it747 realtor 747 DOWNGRADE

Affected: 4.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.11

1. Check installed version

apt-cache policy realtor-747 || rpm -q realtor-747 || realtor-747 --version

2. No fixed release: DOWNGRADE to a release before 4.11 (Debian / Ubuntu)

apt-cache madison realtor-747 sudo apt install realtor-747=<VERSION_BEFORE_4.11> sudo apt-mark hold realtor-747

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

dnf --showduplicates list realtor-747 sudo dnf downgrade realtor-747-<VERSION_BEFORE_4.11> sudo dnf versionlock add realtor-747

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: Realtor 747 - 'define.php?INC_DIR' 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-2009-0495?

realtor 747: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2009-0495 being exploited?

CVE-2009-0495 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-2009-0495 affect?

CVE-2009-0495 affects realtor 747. Severity is high (CVSS 7.5). PHP remote file inclusion vulnerability in include/define.php in REALTOR 747 4.11 allows remote attackers to execute arbitrary PHP code via a URL in the INC_DIR parameter.

How urgent is CVE-2009-0495?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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