CVE-2006-3173: Multiple PHP remote file inclusion vulnerabilities in Content*Builder 0.7.5 allow remote attackers to execute

This month

HIGH 7.5DOWNGRADE

CVE-2006-3173 is a high-severity flaw (CVSS 7.5) affecting content\*builder. 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 Content*Builder 0.7.5 allow remote attackers to execute arbitrary PHP code via a URL in the (1) path[cb] parameter to (a) libraries/comment/postComment.php and (b) modules/poll/poll.php, (2) rel parameter to (c) modules/archive/overview.inc.php, and the (3) actualModuleDir parameter to (d) modules/forum/showThread.inc.php. NOTE: the provenance of this information is unknown; the details are o

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.5% (top 15%)
CISA exploited list	No
Published	2006-06-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: content\*builder

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

Am I affected?

Timeline

2006-06-23 00:02 UTCPublished CVE record published
2026-06-16 22:26 UTCUpdated Record last modified

content\*builder content\*builder DOWNGRADE

Affected: 0.7.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.7.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.7.5 (Debian / Ubuntu)

apt-cache madison contentbuilder sudo apt install contentbuilder=<VERSION_BEFORE_0.7.5> sudo apt-mark hold contentbuilder

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

dnf --showduplicates list contentbuilder sudo dnf downgrade contentbuilder-<VERSION_BEFORE_0.7.5> sudo dnf versionlock add contentbuilder

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: Content Builder 0.7.5 - 'postComment.php' 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-2006-3173?

content\*builder: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-3173 being exploited?

CVE-2006-3173 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-2006-3173 affect?

CVE-2006-3173 affects content\*builder. Severity is high (CVSS 7.5). Multiple PHP remote file inclusion vulnerabilities in Content*Builder 0.7.5 allow remote attackers to execute arbitrary PHP code via a URL in the (1) path[cb] parameter to (a) libraries/comment/postComment.php and (b) modules/poll/poll.php,

How urgent is CVE-2006-3173?

Priority 52/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-3172 HIGH 7.5 DOWNGRADE Multiple PHP remote file inclusion vulnerabilities in Content*Builder 0.7.5 allow remote attackers to execute

References

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