CVE-2006-5735: Directory traversal vulnerability in include/common.php in PunBB before 1.2.14 allows remote authenticated use

Q: How do I fix CVE-2006-5735?

punbb: upgrade to newer than 1.2.13. Exact commands for each OS are on this page.

Q: Is CVE-2006-5735 being exploited?

CVE-2006-5735 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-2006-5735 affect?

CVE-2006-5735 affects punbb. Severity is high (CVSS 7.5). Directory traversal vulnerability in include/common.php in PunBB before 1.2.14 allows remote authenticated users to include and execute arbitrary local files via a .. (dot dot) in the language parameter, related to register.php storing a la

Q: How urgent is CVE-2006-5735?

Priority 50/100. High severity; EPSS top 3%: very likely to be exploited

This week

HIGH 7.5UPGRADE

CVE-2006-5735 is a high-severity flaw (CVSS 7.5) affecting punbb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in include/common.php in PunBB before 1.2.14 allows remote authenticated users to include and execute arbitrary local files via a .. (dot dot) in the language parameter, related to register.php storing a language value in the users table.

Why this priority

High severity
EPSS top 3%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	14.4% (top 3%)
CISA exploited list	No
Published	2006-11-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: punbb

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

Am I affected?

Timeline

2006-11-06 18:07 UTCPublished CVE record published
2026-06-16 22:31 UTCUpdated Record last modified

punbb punbb UPGRADE

Affected: <= 1.2.13

Fixed in: newer than 1.2.13

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.2.13 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade punbb

Note

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

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-2006-5735?

punbb: upgrade to newer than 1.2.13. Exact commands for each OS are on this page.

Is CVE-2006-5735 being exploited?

CVE-2006-5735 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-2006-5735 affect?

CVE-2006-5735 affects punbb. Severity is high (CVSS 7.5). Directory traversal vulnerability in include/common.php in PunBB before 1.2.14 allows remote authenticated users to include and execute arbitrary local files via a .. (dot dot) in the language parameter, related to register.php storing a la

How urgent is CVE-2006-5735?

Priority 50/100. High severity; EPSS top 3%: very likely to be exploited

Software pages

PHP vulnerabilities

Related CVEs

CVE-2021-28968 MEDIUM 5.4 UPGRADE An issue was discovered in PunBB before 1.4.6
CVE-2011-3371 MEDIUM 4.3 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in include/functions.php in PunBB before 1.3.6 allow remot
CVE-2010-0455 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in forum/viewtopic.php in PunBB 1.3 allows remote attackers to inject
CVE-2009-4894 MEDIUM 4.3 UPGRADE Multiple cross-site scripting (XSS) vulnerabilities in profile.php in PunBB before 1.3.4 allow remote attacker
CVE-2008-7241 MEDIUM 6.8 UPGRADE Cross-site request forgery (CSRF) vulnerability in PunBB before 1.2.17 allows remote attackers to hijack the a

References

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