CVE-2018-6583: SQL Injection exists in the Timetable Responsive Schedule 1.5 component for Joomla! via a view=event&alias= re

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-6583 is a critical-severity flaw (CVSS 9.8) affecting timetable responsive schedule. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL Injection exists in the Timetable Responsive Schedule 1.5 component for Joomla! via a view=event&alias= request.

Why this priority

Critical severity
EPSS top 3%: 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	19.1% (top 3%)
CISA exploited list	No
Weakness	CWE-89
Published	2018-02-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: quanticalabs

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

Am I affected?

Timeline

2018-02-17 07:29 UTCPublished CVE record published
2026-06-17 02:02 UTCUpdated Record last modified

quanticalabs timetable responsive schedule DOWNGRADE

Affected: 1.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5

1. Check installed version

apt-cache policy timetable-responsive-schedule || rpm -q timetable-responsive-schedule || timetable-responsive-schedule --version

2. No fixed release: DOWNGRADE to a release before 1.5 (Debian / Ubuntu)

apt-cache madison timetable-responsive-schedule sudo apt install timetable-responsive-schedule=<VERSION_BEFORE_1.5> sudo apt-mark hold timetable-responsive-schedule

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

dnf --showduplicates list timetable-responsive-schedule sudo dnf downgrade timetable-responsive-schedule-<VERSION_BEFORE_1.5> sudo dnf versionlock add timetable-responsive-schedule

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 Timetable Responsive Schedule For Joomla! 1.5 - 'alias' 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-2018-6583?

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

Is CVE-2018-6583 being exploited?

CVE-2018-6583 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-2018-6583 affect?

CVE-2018-6583 affects timetable responsive schedule. Severity is critical (CVSS 9.8). SQL Injection exists in the Timetable Responsive Schedule 1.5 component for Joomla! via a view=event&alias= request.

How urgent is CVE-2018-6583?

Priority 69/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Joomla vulnerabilities

References

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