CVE-2011-5283: Cross-site scripting (XSS) vulnerability in the web management interface in httpd/cgi-bin/ipinfo.cgi in Smooth

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MEDIUM 4.3MITIGATE

CVE-2011-5283 is a medium-severity flaw (CVSS 4.3) affecting smoothwall. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the web management interface in httpd/cgi-bin/ipinfo.cgi in Smoothwall Express 3.1 and 3.0 SP3 and earlier allows remote attackers to inject arbitrary web script or HTML via the IP parameter in a Run action.

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	3.2% (top 12%)
CISA exploited list	No
Weakness	CWE-79
Published	2014-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: smoothwall

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

Am I affected?

Timeline

2014-12-31 22:59 UTCPublished CVE record published
2026-06-16 23:36 UTCUpdated Record last modified

smoothwall smoothwall MITIGATE

Affected: 3.0 sp3 · 3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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: SmoothWall Express 3.0 - Multiple Vulnerabilities

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-2011-5283?

smoothwall: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-5283 being exploited?

CVE-2011-5283 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-2011-5283 affect?

CVE-2011-5283 affects smoothwall. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in the web management interface in httpd/cgi-bin/ipinfo.cgi in Smoothwall Express 3.1 and 3.0 SP3 and earlier allows remote attackers to inject arbitrary web script or HTML via the IP parameter in a

How urgent is CVE-2011-5283?

Priority 42/100. Public exploit reference

Software pages

Apache HTTP Server vulnerabilities

Related CVEs

CVE-2014-9431 MEDIUM 6.8 MITIGATE Multiple cross-site request forgery (CSRF) vulnerabilities in Smoothwall Express 3.1 and 3.0 SP3 allow remote
CVE-2014-9430 MEDIUM 4.3 MITIGATE Cross-site scripting (XSS) vulnerability in httpd/cgi-bin/vpn.cgi/vpnconfig.dat in Smoothwall Express 3.0 SP3
CVE-2014-9429 MEDIUM 4.3 MITIGATE Multiple cross-site scripting (XSS) vulnerabilities in Smoothwall Express 3.1 and 3.0 SP3 allow remote attacke
CVE-2011-5284 MEDIUM 6.8 UPGRADE Cross-site request forgery (CSRF) vulnerability in the web management interface in httpd/cgi-bin/shutdown.cgi
CVE-2003-0209 HIGH 10.0 DOWNGRADE DOWNGRADE Integer overflow in the TCP stream reassembly module (stream4) for Snort 2.0 and earlier allows remote attacke

References

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