CVE-2006-6634: Multiple PHP remote file inclusion vulnerabilities in the ExtCalThai (com_extcalendar) 0.9.1 and earlier compo

Q: How do I fix CVE-2006-6634?

extcalthai module: upgrade to newer than 0.9.1. Exact commands for each OS are on this page.

Q: Is CVE-2006-6634 being exploited?

CVE-2006-6634 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-2006-6634 affect?

CVE-2006-6634 affects extcalthai module. Severity is high (CVSS 7.5). Multiple PHP remote file inclusion vulnerabilities in the ExtCalThai (com_extcalendar) 0.9.1 and earlier component for Mambo allow remote attackers to execute arbitrary PHP code via a URL in (1) the CONFIG_EXT[LANGUAGES_DIR] parameter to ad

Q: How urgent is CVE-2006-6634?

Priority 53/100. High severity; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2006-6634 is a high-severity flaw (CVSS 7.5) affecting extcalthai module. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple PHP remote file inclusion vulnerabilities in the ExtCalThai (com_extcalendar) 0.9.1 and earlier component for Mambo allow remote attackers to execute arbitrary PHP code via a URL in (1) the CONFIG_EXT[LANGUAGES_DIR] parameter to admin_events.php, (2) the mosConfig_absolute_path parameter to extcalendar.php, or (3) the CONFIG_EXT[LIB_DIR] parameter to lib/mail.inc.php.

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	2.7% (top 14%)
CISA exploited list	No
Published	2006-12-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mambo

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

Am I affected?

Timeline

2006-12-18 11:28 UTCPublished CVE record published
2026-06-16 22:33 UTCUpdated Record last modified

mambo extcalthai module UPGRADE

Affected: <= 0.9.1

Fixed in: newer than 0.9.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy extcalthai-module || rpm -q extcalthai-module || extcalthai-module --version

2. UPGRADE to newer than 0.9.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade extcalthai-module

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade extcalthai-module

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: MamboLaiThai ExtCalThai 0.9.1 - 'admin_events.php?CONFIG_EXT[LANGUAGES_DIR]' Remote File Inclusion
Exploit-DB: MamboLaiThai ExtCalThai 0.9.1 - 'mail.inc.php?CONFIG_EXT[LIB_DIR]' Remote File Inclusion

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-2006-6634?

extcalthai module: upgrade to newer than 0.9.1. Exact commands for each OS are on this page.

Is CVE-2006-6634 being exploited?

CVE-2006-6634 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-2006-6634 affect?

CVE-2006-6634 affects extcalthai module. Severity is high (CVSS 7.5). Multiple PHP remote file inclusion vulnerabilities in the ExtCalThai (com_extcalendar) 0.9.1 and earlier component for Mambo allow remote attackers to execute arbitrary PHP code via a URL in (1) the CONFIG_EXT[LANGUAGES_DIR] parameter to ad

How urgent is CVE-2006-6634?

Priority 53/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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