CVE-2011-4095: Jara 1.6 has an XSS vulnerability

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MEDIUM 6.1DOWNGRADE

CVE-2011-4095 is a medium-severity flaw (CVSS 6.1) affecting jara. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Jara 1.6 has an XSS vulnerability

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-79
Published	2020-01-21
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: jara project

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

Am I affected?

Timeline

2020-01-21 15:15 UTCPublished CVE record published
2026-06-16 23:34 UTCUpdated Record last modified

jara project jara DOWNGRADE

Affected: 1.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6 (Debian / Ubuntu)

apt-cache madison jara sudo apt install jara=<VERSION_BEFORE_1.6> sudo apt-mark hold jara

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

dnf --showduplicates list jara sudo dnf downgrade jara-<VERSION_BEFORE_1.6> sudo dnf versionlock add jara

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: Jara 1.6 - 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-2011-4095?

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

Is CVE-2011-4095 being exploited?

CVE-2011-4095 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-2011-4095 affect?

CVE-2011-4095 affects jara. Severity is medium (CVSS 6.1). Jara 1.6 has an XSS vulnerability

How urgent is CVE-2011-4095?

Priority 46/100. Public exploit reference

Related CVEs

CVE-2011-4094 CRITICAL 9.8 DOWNGRADE Jara 1.6 has a SQL injection vulnerability.

References

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