CVE-2008-5418: Directory traversal vulnerability in login.php in the PunPortal module before 2.0 for PunBB allows remote atta

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MEDIUM 5.1DOWNGRADE

CVE-2008-5418 is a medium-severity flaw (CVSS 5.1) affecting punportal module. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in login.php in the PunPortal module before 2.0 for PunBB allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the pun_user[language] parameter.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.1 (Medium)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-22
Published	2008-12-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: justin roy

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

Am I affected?

Timeline

2008-12-10 14:00 UTCPublished CVE record published
2026-06-16 22:59 UTCUpdated Record last modified

justin roy punportal module 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 punportal-module || rpm -q punportal-module || punportal-module --version

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

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

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

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

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: PunBB Mod PunPortal 0.1 - 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-2008-5418?

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

Is CVE-2008-5418 being exploited?

CVE-2008-5418 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-2008-5418 affect?

CVE-2008-5418 affects punportal module. Severity is medium (CVSS 5.1). Directory traversal vulnerability in login.php in the PunPortal module before 2.0 for PunBB allows remote attackers to include and execute arbitrary local files via a .. (dot dot) in the pun_user[language] parameter.

How urgent is CVE-2008-5418?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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