CVE-2006-4753: Directory traversal vulnerability in index.php in PHProg before 1.1 allows remote attackers to read arbitrary

This month

MEDIUM 5.0DOWNGRADE

CVE-2006-4753 is a medium-severity flaw (CVSS 5.0) affecting phprog. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in index.php in PHProg before 1.1 allows remote attackers to read arbitrary files via a .. (dot dot) in the lang parameter.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.5% (top 11%)
CISA exploited list	No
Published	2006-09-13
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

2006-09-13 22:07 UTCPublished CVE record published
2026-06-16 22:29 UTCUpdated Record last modified

comscripts phprog DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison phprog sudo apt install phprog=<VERSION_BEFORE_1.0> sudo apt-mark hold phprog

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

dnf --showduplicates list phprog sudo dnf downgrade phprog-<VERSION_BEFORE_1.0> sudo dnf versionlock add phprog

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: PHProg 1.0 - 'index.php?lang' Traversal Arbitrary File Access

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-2006-4753?

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

Is CVE-2006-4753 being exploited?

CVE-2006-4753 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-2006-4753 affect?

CVE-2006-4753 affects phprog. Severity is medium (CVSS 5.0). Directory traversal vulnerability in index.php in PHProg before 1.1 allows remote attackers to read arbitrary files via a .. (dot dot) in the lang parameter.

How urgent is CVE-2006-4753?

Priority 45/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-4754 MEDIUM 6.8 DOWNGRADE Cross-site scripting (XSS) vulnerability in index.php in PHProg before 1.1 allows remote attackers to inject a

References

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