CVE-2014-9439: Cross-site scripting (XSS) vulnerability in Easy File Sharing Web Server 6.8 allows remote attackers to inject

Routine

MEDIUM 4.3DOWNGRADE

CVE-2014-9439 is a medium-severity flaw (CVSS 4.3) affecting easy file sharing web server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in Easy File Sharing Web Server 6.8 allows remote attackers to inject arbitrary web script or HTML via the username field during registration, which is not properly handled by forum.ghp.

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 26%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-01-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: efssoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-01-02 19:59 UTCPublished CVE record published
2026-06-17 00:18 UTCUpdated Record last modified

efssoft easy file sharing web server DOWNGRADE

Affected: 6.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.8

1. Check installed version

apt-cache policy easy-file-sharing-web-server || rpm -q easy-file-sharing-web-server || easy-file-sharing-web-server --version

2. No fixed release: DOWNGRADE to a release before 6.8 (Debian / Ubuntu)

apt-cache madison easy-file-sharing-web-server sudo apt install easy-file-sharing-web-server=<VERSION_BEFORE_6.8> sudo apt-mark hold easy-file-sharing-web-server

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

dnf --showduplicates list easy-file-sharing-web-server sudo dnf downgrade easy-file-sharing-web-server-<VERSION_BEFORE_6.8> sudo dnf versionlock add easy-file-sharing-web-server

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: Easy File Sharing Web Server 6.8 - Persistent 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-2014-9439?

easy file sharing web server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-9439 being exploited?

CVE-2014-9439 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-2014-9439 affect?

CVE-2014-9439 affects easy file sharing web server. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in Easy File Sharing Web Server 6.8 allows remote attackers to inject arbitrary web script or HTML via the username field during registration, which is not properly handled by forum.ghp.

How urgent is CVE-2014-9439?

Priority 39/100. Public exploit reference

Related CVEs

CVE-2018-9059 CRITICAL 9.8 DOWNGRADE Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 7.2 allows remote attackers to execute arbit
CVE-2018-18912 CRITICAL 9.8 DOWNGRADE An issue was discovered in Easy File Sharing (EFS) Web Server 7.2
CVE-2014-5178 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in Easy File Sharing (EFS) Web Server 6.8 allow remote aut
CVE-2014-3791 HIGH 10.0 DOWNGRADE Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 6.8 allows remote attackers to execute arbit

References

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