CVE-2008-5856: Directory traversal vulnerability in scripts/export.php in ClaSS before 0.8.61 allows remote attackers to read

Q: How do I fix CVE-2008-5856?

class: upgrade to newer than 0.8.60. Exact commands for each OS are on this page.

Q: Is CVE-2008-5856 being exploited?

CVE-2008-5856 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-2008-5856 affect?

CVE-2008-5856 affects class. Severity is medium (CVSS 5.0). Directory traversal vulnerability in scripts/export.php in ClaSS before 0.8.61 allows remote attackers to read arbitrary files via directory traversal sequences in the ftype parameter.

Q: How urgent is CVE-2008-5856?

Priority 46/100. EPSS top 5%: very likely to be exploited; Public exploit reference

This month

MEDIUM 5.0UPGRADE

CVE-2008-5856 is a medium-severity flaw (CVSS 5.0) affecting class. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in scripts/export.php in ClaSS before 0.8.61 allows remote attackers to read arbitrary files via directory traversal sequences in the ftype parameter.

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	8.0% (top 5%)
CISA exploited list	No
Weakness	CWE-22
Published	2009-01-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: class

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

Am I affected?

Timeline

2009-01-06 17:30 UTCPublished CVE record published
2026-06-16 23:01 UTCUpdated Record last modified

class class UPGRADE

Affected: <= 0.8.60 · 0.4 beta · 0.4.0 · 0.4.1 · 0.4.2 · 0.5.0 · 0.5.1 · 0.5.2

Fixed in: newer than 0.8.60

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 0.8.60 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade class

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade class

Note

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

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: ClaSS 0.8.60 - 'export.php' Local 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-2008-5856?

class: upgrade to newer than 0.8.60. Exact commands for each OS are on this page.

Is CVE-2008-5856 being exploited?

CVE-2008-5856 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-2008-5856 affect?

CVE-2008-5856 affects class. Severity is medium (CVSS 5.0). Directory traversal vulnerability in scripts/export.php in ClaSS before 0.8.61 allows remote attackers to read arbitrary files via directory traversal sequences in the ftype parameter.

How urgent is CVE-2008-5856?

Priority 46/100. EPSS top 5%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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