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CVE-2007-2199: PHP remote file inclusion vulnerability in lib/pcltar.lib.php (aka pcltar.php) in the PclTar module 1.3 and 1.

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MEDIUM 6.8DOWNGRADEDOWNGRADEDOWNGRADE

CVE-2007-2199 is a medium-severity flaw (CVSS 6.8) affecting cjg explorer pro, joomla, n x wcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in lib/pcltar.lib.php (aka pcltar.php) in the PclTar module 1.3 and 1.3.1 for Vincent Blavet PhpConcept Library, as used in multiple products including (1) Joomla! 1.5.0 Beta, (2) N/X Web Content Management System (WCMS) 4.5, (3) CJG EXPLORER PRO 3.3, and (4) phpSiteBackup 0.1, allows remote attackers to execute arbitrary PHP code via a URL in the g_pcltar_lib_dir parameter.

Why this priority

  • EPSS top 1%: very likely to be exploited
  • Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score6.8 (Medium)
EPSS exploit chance46.9% (top 1%)
CISA exploited listNo
WeaknessCWE-94
Published2007-04-24
Last modified2026-06-16
Publisher (CNA): MITRE · Vendor: cjg explorer pro · joomla · nx · phpsitebackup

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

cjg explorer pro cjg explorer pro DOWNGRADE
Affected: 3.3
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.3
1. Check installed version
apt-cache policy cjg-explorer-pro || rpm -q cjg-explorer-pro || cjg-explorer-pro --version
2. No fixed release: DOWNGRADE to a release before 3.3 (Debian / Ubuntu)
apt-cache madison cjg-explorer-pro sudo apt install cjg-explorer-pro=<VERSION_BEFORE_3.3> sudo apt-mark hold cjg-explorer-pro
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list cjg-explorer-pro sudo dnf downgrade cjg-explorer-pro-<VERSION_BEFORE_3.3> sudo dnf versionlock add cjg-explorer-pro
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.
joomla joomla DOWNGRADE
Affected: 1.5.0 beta
Fixed in: no fixed release known
Safe to downgrade to: a release before 1.5.0
1. Check installed version
apt-cache policy joomla || rpm -q joomla || joomla --version
2. No fixed release: DOWNGRADE to a release before 1.5.0 (Debian / Ubuntu)
apt-cache madison joomla sudo apt install joomla=<VERSION_BEFORE_1.5.0> sudo apt-mark hold joomla
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list joomla sudo dnf downgrade joomla-<VERSION_BEFORE_1.5.0> sudo dnf versionlock add joomla
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.
nx n x wcms DOWNGRADE
Affected: 4.5
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.5
1. Check installed version
apt-cache policy n-x-wcms || rpm -q n-x-wcms || n-x-wcms --version
2. No fixed release: DOWNGRADE to a release before 4.5 (Debian / Ubuntu)
apt-cache madison n-x-wcms sudo apt install n-x-wcms=<VERSION_BEFORE_4.5> sudo apt-mark hold n-x-wcms
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list n-x-wcms sudo dnf downgrade n-x-wcms-<VERSION_BEFORE_4.5> sudo dnf versionlock add n-x-wcms
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.
phpsitebackup phpsitebackup DOWNGRADE
Affected: 0.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 0.1
1. Check installed version
apt-cache policy phpsitebackup || rpm -q phpsitebackup || phpsitebackup --version
2. No fixed release: DOWNGRADE to a release before 0.1 (Debian / Ubuntu)
apt-cache madison phpsitebackup sudo apt install phpsitebackup=<VERSION_BEFORE_0.1> sudo apt-mark hold phpsitebackup
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list phpsitebackup sudo dnf downgrade phpsitebackup-<VERSION_BEFORE_0.1> sudo dnf versionlock add phpsitebackup
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.

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-2007-2199?

cjg explorer pro: downgrade or apply the listed mitigation; joomla: downgrade or apply the listed mitigation; n x wcms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-2199 being exploited?

CVE-2007-2199 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-2007-2199 affect?

CVE-2007-2199 affects cjg explorer pro, joomla, n x wcms. Severity is medium (CVSS 6.8). PHP remote file inclusion vulnerability in lib/pcltar.lib.php (aka pcltar.php) in the PclTar module 1.3 and 1.3.1 for Vincent Blavet PhpConcept Library, as used in multiple products including (1) Joomla! 1.5.0 Beta, (2) N/X Web Content Mana

How urgent is CVE-2007-2199?

Priority 54/100. EPSS top 1%: very likely to be exploited; Public exploit reference

Software pages

Joomla vulnerabilities · PHP vulnerabilities

Related CVEs

References

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