CVE-2014-3863: Cross-site scripting (XSS) vulnerability in the JChatSocial component before 2.3 for Joomla! allows remote att

Q: How do I fix CVE-2014-3863?

jchatsocial: upgrade to newer than 2.2. Exact commands for each OS are on this page.

Q: Is CVE-2014-3863 being exploited?

CVE-2014-3863 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2014-3863 affect?

CVE-2014-3863 affects jchatsocial. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in the JChatSocial component before 2.3 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the filename parameter in a file upload in an active JChat chat window.

Q: How urgent is CVE-2014-3863?

Priority 35/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2014-3863 is a medium-severity flaw (CVSS 4.3) affecting jchatsocial. 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 JChatSocial component before 2.3 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the filename parameter in a file upload in an active JChat chat window.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-79
Published	2014-10-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: j\!extensions store

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

Am I affected?

Timeline

2014-10-20 18:55 UTCPublished CVE record published
2026-06-17 00:09 UTCUpdated Record last modified

j\!extensions store jchatsocial UPGRADE

Affected: <= 2.2

Fixed in: newer than 2.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade jchatsocial

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade jchatsocial

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2014-3863?

jchatsocial: upgrade to newer than 2.2. Exact commands for each OS are on this page.

Is CVE-2014-3863 being exploited?

CVE-2014-3863 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-2014-3863 affect?

CVE-2014-3863 affects jchatsocial. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in the JChatSocial component before 2.3 for Joomla! allows remote attackers to inject arbitrary web script or HTML via the filename parameter in a file upload in an active JChat chat window.

How urgent is CVE-2014-3863?

Priority 35/100. No elevated risk signals yet.

Software pages

Joomla vulnerabilities

References

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