CVE-2018-6579: SQL Injection exists in the JEXTN Reverse Auction 3.1.0 component for Joomla! via a view=products&uid= request

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-6579 is a critical-severity flaw (CVSS 9.8) affecting reverse auction. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection exists in the JEXTN Reverse Auction 3.1.0 component for Joomla! via a view=products&uid= request.

Why this priority

Critical severity
EPSS top 10%: very likely to be exploited
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	3.8% (top 10%)
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 reverse auction DOWNGRADE

Affected: 3.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1.0

1. Check installed version

apt-cache policy reverse-auction || rpm -q reverse-auction || reverse-auction --version

2. No fixed release: DOWNGRADE to a release before 3.1.0 (Debian / Ubuntu)

apt-cache madison reverse-auction sudo apt install reverse-auction=<VERSION_BEFORE_3.1.0> sudo apt-mark hold reverse-auction

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

dnf --showduplicates list reverse-auction sudo dnf downgrade reverse-auction-<VERSION_BEFORE_3.1.0> sudo dnf versionlock add reverse-auction

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 Reverse Auction 3.1.0 - 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-2018-6579?

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

Is CVE-2018-6579 being exploited?

CVE-2018-6579 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-2018-6579 affect?

CVE-2018-6579 affects reverse auction. Severity is critical (CVSS 9.8). SQL Injection exists in the JEXTN Reverse Auction 3.1.0 component for Joomla! via a view=products&uid= request.

How urgent is CVE-2018-6579?

Priority 67/100. Critical severity; EPSS top 10%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Joomla vulnerabilities

References

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