CVE-2006-5253: PHP remote file inclusion vulnerability in strload.php in Dayana Networks phpOnline (aka PHP-Online) 2.1 allow

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HIGH 7.5DOWNGRADE

CVE-2006-5253 is a high-severity flaw (CVSS 7.5) affecting phponline. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP remote file inclusion vulnerability in strload.php in Dayana Networks phpOnline (aka PHP-Online) 2.1 allows remote attackers to execute arbitrary PHP code via a URL in the LangFile parameter.

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	2006-10-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: dayana networks

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

Am I affected?

Timeline

2006-10-12 22:07 UTCPublished CVE record published
2026-06-16 22:30 UTCUpdated Record last modified

dayana networks phponline DOWNGRADE

Affected: 2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1 (Debian / Ubuntu)

apt-cache madison phponline sudo apt install phponline=<VERSION_BEFORE_2.1> sudo apt-mark hold phponline

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

dnf --showduplicates list phponline sudo dnf downgrade phponline-<VERSION_BEFORE_2.1> sudo dnf versionlock add phponline

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-2006-5253?

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

Is CVE-2006-5253 being exploited?

CVE-2006-5253 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-2006-5253 affect?

CVE-2006-5253 affects phponline. Severity is high (CVSS 7.5). PHP remote file inclusion vulnerability in strload.php in Dayana Networks phpOnline (aka PHP-Online) 2.1 allows remote attackers to execute arbitrary PHP code via a URL in the LangFile parameter.

How urgent is CVE-2006-5253?

Priority 50/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

References

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