CVE-2005-3558: PHP file inclusion vulnerability in index.php in OSTE 1.0 allows remote attackers to execute arbitrary code vi

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HIGH 7.5DOWNGRADE

CVE-2005-3558 is a high-severity flaw (CVSS 7.5) affecting oste. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

PHP file inclusion vulnerability in index.php in OSTE 1.0 allows remote attackers to execute arbitrary code via the (1) page and (2) site parameters.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.8% (top 7%)
CISA exploited list	No
Published	2005-11-16
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: oste

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

Am I affected?

Timeline

2005-11-16 07:42 UTCPublished CVE record published
2026-06-16 22:17 UTCUpdated Record last modified

oste oste 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 oste || rpm -q oste || oste --version

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

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

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

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

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: OSTE 1.0 - 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-2005-3558?

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

Is CVE-2005-3558 being exploited?

CVE-2005-3558 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-2005-3558 affect?

CVE-2005-3558 affects oste. Severity is high (CVSS 7.5). PHP file inclusion vulnerability in index.php in OSTE 1.0 allows remote attackers to execute arbitrary code via the (1) page and (2) site parameters.

How urgent is CVE-2005-3558?

Priority 55/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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