CVE-2005-4011: SQL injection vulnerability in calendar.php in Codewalkers ltwCalendar (aka PHP Event Calendar) 4.2, 4.1.3, an

Q: How do I fix CVE-2005-4011?

ltwcalendar: upgrade to newer than 4.1.3. Exact commands for each OS are on this page.

Q: Is CVE-2005-4011 being exploited?

CVE-2005-4011 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2005-4011 affect?

CVE-2005-4011 affects ltwcalendar. Severity is high (CVSS 7.5). SQL injection vulnerability in calendar.php in Codewalkers ltwCalendar (aka PHP Event Calendar) 4.2, 4.1.3, and earlier allows remote attackers to execute arbitrary SQL commands via the id parameter.

Q: How urgent is CVE-2005-4011?

Priority 52/100. High severity; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2005-4011 is a high-severity flaw (CVSS 7.5) affecting ltwcalendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in calendar.php in Codewalkers ltwCalendar (aka PHP Event Calendar) 4.2, 4.1.3, and earlier allows remote attackers to execute arbitrary SQL commands via the id parameter.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-89
Published	2005-12-05
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: codewalkers

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2005-12-05 11:03 UTCPublished CVE record published
2026-06-16 22:18 UTCUpdated Record last modified

codewalkers ltwcalendar UPGRADE

Affected: <= 4.1.3

Fixed in: newer than 4.1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 4.1.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ltwcalendar

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ltwcalendar

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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: PHP Event Calendar 4.2 - 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-2005-4011?

ltwcalendar: upgrade to newer than 4.1.3. Exact commands for each OS are on this page.

Is CVE-2005-4011 being exploited?

CVE-2005-4011 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-2005-4011 affect?

CVE-2005-4011 affects ltwcalendar. Severity is high (CVSS 7.5). SQL injection vulnerability in calendar.php in Codewalkers ltwCalendar (aka PHP Event Calendar) 4.2, 4.1.3, and earlier allows remote attackers to execute arbitrary SQL commands via the id parameter.

How urgent is CVE-2005-4011?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

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CVE-2006-3041 HIGH 7.5 DOWNGRADE PHP remote file inclusion vulnerability in Ltwcalendar/calendar.php in Codewalkers Ltwcalendar 4.1.3 allows re

References

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