CVE-2007-3189: Cross-site scripting (XSS) vulnerability in auth.php in Just For Fun Network Management System (JFFNMS) 0.8.3

This month

MEDIUM 4.3DOWNGRADE

CVE-2007-3189 is a medium-severity flaw (CVSS 4.3) affecting just for fun network management system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in auth.php in Just For Fun Network Management System (JFFNMS) 0.8.3 allows remote attackers to inject arbitrary web script or HTML via the user parameter.

Why this priority

EPSS top 10%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	4.0% (top 10%)
CISA exploited list	No
Published	2007-06-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: jffnms

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

Am I affected?

Timeline

2007-06-12 23:30 UTCPublished CVE record published
2026-06-16 22:41 UTCUpdated Record last modified

jffnms just for fun network management system DOWNGRADE

Affected: 0.8.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.8.3

1. Check installed version

apt-cache policy just-for-fun-network-management-system || rpm -q just-for-fun-network-management-system || just-for-fun-network-management-system --version

2. No fixed release: DOWNGRADE to a release before 0.8.3 (Debian / Ubuntu)

apt-cache madison just-for-fun-network-management-system sudo apt install just-for-fun-network-management-system=<VERSION_BEFORE_0.8.3> sudo apt-mark hold just-for-fun-network-management-system

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

dnf --showduplicates list just-for-fun-network-management-system sudo dnf downgrade just-for-fun-network-management-system-<VERSION_BEFORE_0.8.3> sudo dnf versionlock add just-for-fun-network-management-system

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: JFFNms 0.8.3 - 'auth.php?user' 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-2007-3189?

just for fun network management system: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-3189 being exploited?

CVE-2007-3189 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-2007-3189 affect?

CVE-2007-3189 affects just for fun network management system. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in auth.php in Just For Fun Network Management System (JFFNMS) 0.8.3 allows remote attackers to inject arbitrary web script or HTML via the user parameter.

How urgent is CVE-2007-3189?

Priority 43/100. EPSS top 10%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2007-3204 HIGH 7.5 DOWNGRADE SQL injection vulnerability in auth.php in Just For Fun Network Management System (JFFNMS) 0.8.4-pre2 allows r
CVE-2007-3192 HIGH 9.4 DOWNGRADE admin/setup.php in Just For Fun Network Management System (JFFNMS) 0.8.3 allows remote attackers to read and m
CVE-2007-3191 HIGH 9.4 DOWNGRADE Just For Fun Network Management System (JFFNMS) 0.8.3 allows remote attackers to obtain configuration informat
CVE-2007-3190 MEDIUM 6.8 DOWNGRADE Multiple SQL injection vulnerabilities in auth.php in Just For Fun Network Management System (JFFNMS) 0.8.3, w

References

← Back to latest CVEs