CVE-2018-17398: SQL Injection exists in the AMGallery 1.2.3 component for Joomla! via the filter_category_id parameter.

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-17398 is a critical-severity flaw (CVSS 9.8) affecting amgallery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection exists in the AMGallery 1.2.3 component for Joomla! via the filter_category_id parameter.

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	2.3% (top 17%)
CISA exploited list	No
Weakness	CWE-89
Published	2019-06-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: arenam

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

Am I affected?

Timeline

2019-06-19 17:15 UTCPublished CVE record published
2026-06-17 01:45 UTCUpdated Record last modified

arenam amgallery DOWNGRADE

Affected: 1.2.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.3

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.2.3 (Debian / Ubuntu)

apt-cache madison amgallery sudo apt install amgallery=<VERSION_BEFORE_1.2.3> sudo apt-mark hold amgallery

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

dnf --showduplicates list amgallery sudo dnf downgrade amgallery-<VERSION_BEFORE_1.2.3> sudo dnf versionlock add amgallery

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.

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-2018-17398?

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

Is CVE-2018-17398 being exploited?

CVE-2018-17398 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-2018-17398 affect?

CVE-2018-17398 affects amgallery. Severity is critical (CVSS 9.8). SQL Injection exists in the AMGallery 1.2.3 component for Joomla! via the filter_category_id parameter.

How urgent is CVE-2018-17398?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Joomla vulnerabilities

References

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