CVE-2006-3207: Directory traversal vulnerability in newpost.php in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote a

Routine

MEDIUM 5.0DOWNGRADE

CVE-2006-3207 is a medium-severity flaw (CVSS 5.0) affecting ultimate php board. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in newpost.php in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote attackers to overwrite arbitrary files via a .. (dot dot) sequence and trailing null (%00) byte in the id parameter, as demonstrated by injecting a Perl CGI script using "[NR]" sequences in the message parameter, then calling close.php with modified id and t_id parameters to chmod the script. NOTE: this issue might be resultant from dynam

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Published	2006-06-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: ultimate php board

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

Am I affected?

Timeline

2006-06-24 01:06 UTCPublished CVE record published
2026-06-16 22:26 UTCUpdated Record last modified

ultimate php board ultimate php board DOWNGRADE

Affected: 1.8 · 1.8.2 · 1.9 · 1.9.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8

1. Check installed version

apt-cache policy ultimate-php-board || rpm -q ultimate-php-board || ultimate-php-board --version

2. No fixed release: DOWNGRADE to a release before 1.8 (Debian / Ubuntu)

apt-cache madison ultimate-php-board sudo apt install ultimate-php-board=<VERSION_BEFORE_1.8> sudo apt-mark hold ultimate-php-board

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

dnf --showduplicates list ultimate-php-board sudo dnf downgrade ultimate-php-board-<VERSION_BEFORE_1.8> sudo dnf versionlock add ultimate-php-board

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.

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-2006-3207?

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

Is CVE-2006-3207 being exploited?

CVE-2006-3207 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-2006-3207 affect?

CVE-2006-3207 affects ultimate php board. Severity is medium (CVSS 5.0). Directory traversal vulnerability in newpost.php in Ultimate PHP Board (UPB) 1.9.6 and earlier allows remote attackers to overwrite arbitrary files via a .. (dot dot) sequence and trailing null (%00) byte in the id parameter, as demonstrate

How urgent is CVE-2006-3207?

Priority 35/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities · Perl vulnerabilities

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References

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