CVE-2018-6575: SQL Injection exists in the JEXTN Classified 1.0.0 component for Joomla! via a view=boutique&sid= request.

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-6575 is a critical-severity flaw (CVSS 9.8) affecting classified. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection exists in the JEXTN Classified 1.0.0 component for Joomla! via a view=boutique&sid= request.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.7% (top 14%)
CISA exploited list	No
Weakness	CWE-89
Published	2018-02-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: jextn

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

Am I affected?

Timeline

2018-02-02 17:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

jextn classified DOWNGRADE

Affected: 1.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison classified sudo apt install classified=<VERSION_BEFORE_1.0.0> sudo apt-mark hold classified

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

dnf --showduplicates list classified sudo dnf downgrade classified-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add classified

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: Joomla! Component JEXTN Classified 1.0.0 - 'sid' SQL Injection

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-2018-6575?

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

Is CVE-2018-6575 being exploited?

CVE-2018-6575 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-2018-6575 affect?

CVE-2018-6575 affects classified. Severity is critical (CVSS 9.8). SQL Injection exists in the JEXTN Classified 1.0.0 component for Joomla! via a view=boutique&sid= request.

How urgent is CVE-2018-6575?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Joomla vulnerabilities

References

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