CVE-2006-3171: CRLF injection vulnerability in CS-Forum before 0.82 allows remote attackers to inject arbitrary email headers

Q: How do I fix CVE-2006-3171?

cs-forum: upgrade to newer than 0.81. Exact commands for each OS are on this page.

Q: Is CVE-2006-3171 being exploited?

CVE-2006-3171 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-2006-3171 affect?

CVE-2006-3171 affects cs-forum. Severity is medium (CVSS 5.0). CRLF injection vulnerability in CS-Forum before 0.82 allows remote attackers to inject arbitrary email headers via a newline character in the email parameter to ajouter.php.

Q: How urgent is CVE-2006-3171?

Priority 36/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2006-3171 is a medium-severity flaw (CVSS 5.0) affecting cs-forum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CRLF injection vulnerability in CS-Forum before 0.82 allows remote attackers to inject arbitrary email headers via a newline character in the email parameter to ajouter.php.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.5% (top 26%)
CISA exploited list	No
Published	2006-06-23
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: comscripts

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

comscripts cs-forum UPGRADE

Affected: <= 0.81

Fixed in: newer than 0.81

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cs-forum || rpm -q cs-forum || cs-forum --version

2. UPGRADE to newer than 0.81 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cs-forum

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cs-forum

Note

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

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-2006-3171?

cs-forum: upgrade to newer than 0.81. Exact commands for each OS are on this page.

Is CVE-2006-3171 being exploited?

CVE-2006-3171 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-2006-3171 affect?

CVE-2006-3171 affects cs-forum. Severity is medium (CVSS 5.0). CRLF injection vulnerability in CS-Forum before 0.82 allows remote attackers to inject arbitrary email headers via a newline character in the email parameter to ajouter.php.

How urgent is CVE-2006-3171?

Priority 36/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-3170 MEDIUM 5.0 UPGRADE CS-Forum before 0.82 allows remote attackers to obtain sensitive information via unspecified manipulations, po
CVE-2006-3169 MEDIUM 4.3 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in CS-Forum 0.81 and earlier allow remote attackers to inj
CVE-2006-3168 HIGH 7.5 UPGRADE SQL injection vulnerability in CS-Forum before 0.82 allows remote attackers to execute arbitrary SQL commands

References

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