CVE-2009-4478: Multiple cross-site scripting (XSS) vulnerabilities in Xstate Real Estate 1.0 allow remote attackers to inject

Routine

MEDIUM 4.3DOWNGRADE

CVE-2009-4478 is a medium-severity flaw (CVSS 4.3) affecting real estate. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in Xstate Real Estate 1.0 allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO to (1) home.html or (2) lands.html.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-79
Published	2009-12-30
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: xstate

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

Am I affected?

Timeline

2009-12-30 21:30 UTCPublished CVE record published
2026-06-16 23:13 UTCUpdated Record last modified

xstate real estate DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy real-estate || rpm -q real-estate || real-estate --version

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

apt-cache madison real-estate sudo apt install real-estate=<VERSION_BEFORE_1.0> sudo apt-mark hold real-estate

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

dnf --showduplicates list real-estate sudo dnf downgrade real-estate-<VERSION_BEFORE_1.0> sudo dnf versionlock add real-estate

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: Xstate Real Estate 1.0 - Blind SQL Injection / Cross-Site Scripting

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-2009-4478?

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

Is CVE-2009-4478 being exploited?

CVE-2009-4478 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-2009-4478 affect?

CVE-2009-4478 affects real estate. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in Xstate Real Estate 1.0 allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO to (1) home.html or (2) lands.html.

How urgent is CVE-2009-4478?

Priority 39/100. Public exploit reference

Related CVEs

CVE-2009-4477 HIGH 7.5 DOWNGRADE SQL injection vulnerability in page.html in Xstate Real Estate 1.0 allows remote attackers to execute arbitrar
CVE-2008-6930 MEDIUM 6.5 MITIGATE Unrestricted file upload vulnerability in PHPStore Real Estate allows remote authenticated users to execute ar
CVE-2008-4674 MEDIUM 6.8 DOWNGRADE SQL injection vulnerability in realestate-index.php in Conkurent Real Estate Manager 1.01 allows remote attack

References

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