CVE-2006-4429: PHP remote file inclusion vulnerability in handlers/email/mod.output.php in PHlyMail Lite 3.4.4 and earlier (B

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HIGH 7.5DOWNGRADE

CVE-2006-4429 is a high-severity flaw (CVSS 7.5) affecting phlymail lite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in handlers/email/mod.output.php in PHlyMail Lite 3.4.4 and earlier (Build 3.04.04) allows remote attackers to execute arbitrary PHP code via a URL in the _PM_[path][handler] parameter, a different vector than CVE-2006-4291. NOTE: This issue has been disputed by a third party, who states that the _IN_PHM_ declaration prevents this file from being called directly

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	1.6% (top 24%)
CISA exploited list	No
Published	2006-08-29
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phlymail

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

Am I affected?

Timeline

2006-08-29 00:04 UTCPublished CVE record published
2026-06-16 22:29 UTCUpdated Record last modified

phlymail phlymail lite DOWNGRADE

Affected: 3.44

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.44

1. Check installed version

apt-cache policy phlymail-lite || rpm -q phlymail-lite || phlymail-lite --version

2. No fixed release: DOWNGRADE to a release before 3.44 (Debian / Ubuntu)

apt-cache madison phlymail-lite sudo apt install phlymail-lite=<VERSION_BEFORE_3.44> sudo apt-mark hold phlymail-lite

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

dnf --showduplicates list phlymail-lite sudo dnf downgrade phlymail-lite-<VERSION_BEFORE_3.44> sudo dnf versionlock add phlymail-lite

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-2006-4429?

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

Is CVE-2006-4429 being exploited?

CVE-2006-4429 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-2006-4429 affect?

CVE-2006-4429 affects phlymail lite. Severity is high (CVSS 7.5). PHP remote file inclusion vulnerability in handlers/email/mod.output.php in PHlyMail Lite 3.4.4 and earlier (Build 3.04.04) allows remote attackers to execute arbitrary PHP code via a URL in the _PM_[path][handler] parameter, a different ve

How urgent is CVE-2006-4429?

Priority 50/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-4291 MEDIUM 5.1 UPGRADE PHP remote file inclusion vulnerability in handlers/email/mod.listmail.php in PHlyMail Lite 3.4.4 and earlier

References

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