CVE-2012-6559: Multiple cross-site scripting (XSS) vulnerabilities in FreeNAC 3.02 allow remote attackers to inject arbitrary

Routine

MEDIUM 4.3DOWNGRADE

CVE-2012-6559 is a medium-severity flaw (CVSS 4.3) affecting freenac. 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 FreeNAC 3.02 allow remote attackers to inject arbitrary web script or HTML via the (1) comment, (2) mac, (3) graphtype, (4) name, or (5) type parameter to stats.php; or (6) comment parameter to deviceadd.php.

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	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-79
Published	2013-05-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: freenac

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

Am I affected?

Timeline

2013-05-23 15:55 UTCPublished CVE record published
2026-06-16 23:48 UTCUpdated Record last modified

freenac freenac DOWNGRADE

Affected: 3.0.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.2

1. Check installed version

apt-cache policy freenac || rpm -q freenac || freenac --version

2. No fixed release: DOWNGRADE to a release before 3.0.2 (Debian / Ubuntu)

apt-cache madison freenac sudo apt install freenac=<VERSION_BEFORE_3.0.2> sudo apt-mark hold freenac

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

dnf --showduplicates list freenac sudo dnf downgrade freenac-<VERSION_BEFORE_3.0.2> sudo dnf versionlock add freenac

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: FreeNAC 3.02 - 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-2012-6559?

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

Is CVE-2012-6559 being exploited?

CVE-2012-6559 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-2012-6559 affect?

CVE-2012-6559 affects freenac. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in FreeNAC 3.02 allow remote attackers to inject arbitrary web script or HTML via the (1) comment, (2) mac, (3) graphtype, (4) name, or (5) type parameter to stats.php; or (6) comment para

How urgent is CVE-2012-6559?

Priority 39/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2012-6560 HIGH 7.5 DOWNGRADE SQL injection vulnerability in deviceadd.php in FreeNAC 3.02 allows remote attackers to execute arbitrary SQL

References

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