CVE-2007-1933: Multiple directory traversal vulnerabilities in PcP-Guestbook (PcP-Book) 3.0 allow remote attackers to include

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HIGH 7.5DOWNGRADE

CVE-2007-1933 is a high-severity flaw (CVSS 7.5) affecting pcp-guestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple directory traversal vulnerabilities in PcP-Guestbook (PcP-Book) 3.0 allow remote attackers to include and execute arbitrary local files via a .. (dot dot) in the lang parameter to (1) index.php, (2) gb.php, or (3) faq.php.

Why this priority

High severity
EPSS top 6%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	6.3% (top 6%)
CISA exploited list	No
Published	2007-04-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: dreamcodes

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

Am I affected?

Timeline

2007-04-10 23:19 UTCPublished CVE record published
2026-06-16 22:38 UTCUpdated Record last modified

dreamcodes pcp-guestbook DOWNGRADE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

apt-cache policy pcp-guestbook || rpm -q pcp-guestbook || pcp-guestbook --version

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison pcp-guestbook sudo apt install pcp-guestbook=<VERSION_BEFORE_3.0> sudo apt-mark hold pcp-guestbook

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

dnf --showduplicates list pcp-guestbook sudo dnf downgrade pcp-guestbook-<VERSION_BEFORE_3.0> sudo dnf versionlock add pcp-guestbook

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: PcP-Guestbook 3.0 - 'lang' 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-2007-1933?

pcp-guestbook: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-1933 being exploited?

CVE-2007-1933 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-2007-1933 affect?

CVE-2007-1933 affects pcp-guestbook. Severity is high (CVSS 7.5). Multiple directory traversal vulnerabilities in PcP-Guestbook (PcP-Book) 3.0 allow remote attackers to include and execute arbitrary local files via a .. (dot dot) in the lang parameter to (1) index.php, (2) gb.php, or (3) faq.php.

How urgent is CVE-2007-1933?

Priority 55/100. High severity; EPSS top 6%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

References

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