CVE-2004-2351: Cross-site scripting (XSS) vulnerability in GBook for Php-Nuke 1.0 allows remote attackers to inject arbitrary

Q: How urgent is CVE-2004-2351?

Priority 37/100. Public exploit reference

Routine

MEDIUM 4.3DOWNGRADE

CVE-2004-2351 is a medium-severity flaw (CVSS 4.3) affecting gbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in GBook for Php-Nuke 1.0 allows remote attackers to inject arbitrary web script or HTML via multiple parameters, including (1) name, (2) email, (3) city, and (4) message, which do not use the <script> and <style> tags, which are filtered by PHP-Nuke.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: martin bauer

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

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:09 UTCUpdated Record last modified

martin bauer gbook DOWNGRADE

Affected: all versions · 1.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.4 (Debian / Ubuntu)

apt-cache madison gbook sudo apt install gbook=<VERSION_BEFORE_1.4> sudo apt-mark hold gbook

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

dnf --showduplicates list gbook sudo dnf downgrade gbook-<VERSION_BEFORE_1.4> sudo dnf versionlock add gbook

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-2004-2351?

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

Is CVE-2004-2351 being exploited?

CVE-2004-2351 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-2004-2351 affect?

CVE-2004-2351 affects gbook. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in GBook for Php-Nuke 1.0 allows remote attackers to inject arbitrary web script or HTML via multiple parameters, including (1) name, (2) email, (3) city, and (4) message, which do not use the <scrip

How urgent is CVE-2004-2351?

Priority 37/100. Public exploit reference

Software pages

PHP vulnerabilities

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References

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