CVE-2008-3555: Directory traversal vulnerability in index.php in (1) WSN Forum 4.1.43 and earlier, (2) Gallery 4.1.30 and ear

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MEDIUM 6.8UPGRADEUPGRADEUPGRADE

CVE-2008-3555 is a medium-severity flaw (CVSS 6.8) affecting forum, gallery, knowledge base. 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 (1) WSN Forum 4.1.43 and earlier, (2) Gallery 4.1.30 and earlier, (3) Knowledge Base (WSNKB) 4.1.36 and earlier, (4) Links 4.1.44 and earlier, and possibly (5) Classifieds before 4.1.30 allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the TID parameter, as demonstrated by uploading a .jpg file containing PHP sequences.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-22
Published	2008-08-08
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: wsn

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

Am I affected?

Timeline

2008-08-08 19:41 UTCPublished CVE record published
2026-06-16 22:56 UTCUpdated Record last modified

wsn forum UPGRADE

Affected: <= 4.1.43

Fixed in: newer than 4.1.43

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 4.1.43 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade forum

Note

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

wsn gallery UPGRADE

Affected: <= 4.1.30

Fixed in: newer than 4.1.30

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 4.1.30 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gallery

Note

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

wsn knowledge base UPGRADE

Affected: <= 4.1.36

Fixed in: newer than 4.1.36

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy knowledge-base || rpm -q knowledge-base || knowledge-base --version

2. UPGRADE to newer than 4.1.36 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade knowledge-base

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade knowledge-base

Note

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

wsn links DOWNGRADE

Affected: 4.0.0 · 4.0.1 · 4.0.2 · 4.0.3 · 4.0.4 · 4.0.5 · 4.0.6 · 4.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison links sudo apt install links=<VERSION_BEFORE_4.0.0> sudo apt-mark hold links

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

dnf --showduplicates list links sudo dnf downgrade links-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add links

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: Wsn (Multiple Products) - Local File Inclusion / Code Execution

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-2008-3555?

forum: upgrade to newer than 4.1.43; gallery: upgrade to newer than 4.1.30; knowledge base: upgrade to newer than 4.1.36. Exact commands for each OS are on this page.

Is CVE-2008-3555 being exploited?

CVE-2008-3555 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-2008-3555 affect?

CVE-2008-3555 affects forum, gallery, knowledge base. Severity is medium (CVSS 6.8). Directory traversal vulnerability in index.php in (1) WSN Forum 4.1.43 and earlier, (2) Gallery 4.1.30 and earlier, (3) Knowledge Base (WSNKB) 4.1.36 and earlier, (4) Links 4.1.44 and earlier, and possibly (5) Classifieds before 4.1.30 allo

How urgent is CVE-2008-3555?

Priority 49/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2008-1789 MEDIUM 6.8 MITIGATE SQL injection vulnerability in forum.php in Prozilla Forum allows remote attackers to execute arbitrary SQL co

References

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