CVE-2006-5105: Multiple PHP remote file inclusion vulnerabilities in SyntaxCMS 1.1.1 through 1.3 allow remote attackers to ex

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HIGH 7.5DOWNGRADE

CVE-2006-5105 is a high-severity flaw (CVSS 7.5) affecting syntaxcms. 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 SyntaxCMS 1.1.1 through 1.3 allow remote attackers to execute arbitrary PHP code via a URL in (1) the init_path parameter to admin/testing/tests/0030_init_syntax.php, or (2) an unspecified parameter to admin/testing/index.php. NOTE: the 0004_init_urls.php vector is already covered by CVE-2006-5055.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2006-10-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: forum one

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

Am I affected?

Timeline

2006-10-03 04:03 UTCPublished CVE record published
2026-06-16 22:30 UTCUpdated Record last modified

forum one syntaxcms DOWNGRADE

Affected: 1.1.1 · 1.2.1 · 1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1.1 (Debian / Ubuntu)

apt-cache madison syntaxcms sudo apt install syntaxcms=<VERSION_BEFORE_1.1.1> sudo apt-mark hold syntaxcms

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

dnf --showduplicates list syntaxcms sudo dnf downgrade syntaxcms-<VERSION_BEFORE_1.1.1> sudo dnf versionlock add syntaxcms

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.

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-2006-5105?

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

Is CVE-2006-5105 being exploited?

CVE-2006-5105 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-2006-5105 affect?

CVE-2006-5105 affects syntaxcms. Severity is high (CVSS 7.5). Multiple PHP remote file inclusion vulnerabilities in SyntaxCMS 1.1.1 through 1.3 allow remote attackers to execute arbitrary PHP code via a URL in (1) the init_path parameter to admin/testing/tests/0030_init_syntax.php, or (2) an unspecifi

How urgent is CVE-2006-5105?

Priority 45/100. High severity

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-5055 HIGH 7.5 UPGRADE PHP remote file inclusion vulnerability in admin/testing/tests/0004_init_urls.php in syntaxCMS 1.1.1 through 1
CVE-2005-4496 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in search in SyntaxCMS 1.2.1 and earlier allows remote attackers to i

References

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