CVE-2018-6395: SQL Injection exists in the Visual Calendar 3.1.3 component for Joomla! via the id parameter in a view=load ac

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-6395 is a critical-severity flaw (CVSS 9.8) affecting visual calendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection exists in the Visual Calendar 3.1.3 component for Joomla! via the id parameter in a view=load action.

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	2018-01-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: joomlacalendars

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

Am I affected?

Timeline

2018-01-30 15:29 UTCPublished CVE record published
2026-06-17 02:01 UTCUpdated Record last modified

joomlacalendars visual calendar DOWNGRADE

Affected: 3.1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1.3

1. Check installed version

apt-cache policy visual-calendar || rpm -q visual-calendar || visual-calendar --version

2. No fixed release: DOWNGRADE to a release before 3.1.3 (Debian / Ubuntu)

apt-cache madison visual-calendar sudo apt install visual-calendar=<VERSION_BEFORE_3.1.3> sudo apt-mark hold visual-calendar

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

dnf --showduplicates list visual-calendar sudo dnf downgrade visual-calendar-<VERSION_BEFORE_3.1.3> sudo dnf versionlock add visual-calendar

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 Visual Calendar 3.1.3 - 'id' 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-2018-6395?

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

Is CVE-2018-6395 being exploited?

CVE-2018-6395 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-2018-6395 affect?

CVE-2018-6395 affects visual calendar. Severity is critical (CVSS 9.8). SQL Injection exists in the Visual Calendar 3.1.3 component for Joomla! via the id parameter in a view=load action.

How urgent is CVE-2018-6395?

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

Software pages

Joomla vulnerabilities

References

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