CVE-2006-6372: Multiple cross-site scripting (XSS) vulnerabilities in pbguestbook.php in JAB Guest Book 20061205 allow remote

This month

MEDIUM 6.8DOWNGRADE

CVE-2006-6372 is a medium-severity flaw (CVSS 6.8) affecting jab guest book. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in pbguestbook.php in JAB Guest Book 20061205 allow remote attackers to inject arbitrary web script or HTML via the (1) topic or (2) message parameter. NOTE: The provenance of this information is unknown; the details are obtained solely from third party information.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Published	2006-12-07
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: james barnsley

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

Am I affected?

Timeline

2006-12-07 17:28 UTCPublished CVE record published
2026-06-16 22:32 UTCUpdated Record last modified

james barnsley jab guest book DOWNGRADE

Affected: 2006-12-05

Fixed in: no fixed release known

Safe to downgrade to: a release before 2006-12-05

1. Check installed version

apt-cache policy jab-guest-book || rpm -q jab-guest-book || jab-guest-book --version

2. No fixed release: DOWNGRADE to a release before 2006-12-05 (Debian / Ubuntu)

apt-cache madison jab-guest-book sudo apt install jab-guest-book=<VERSION_BEFORE_2006-12-05> sudo apt-mark hold jab-guest-book

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

dnf --showduplicates list jab-guest-book sudo dnf downgrade jab-guest-book-<VERSION_BEFORE_2006-12-05> sudo dnf versionlock add jab-guest-book

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-2006-6372?

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

Is CVE-2006-6372 being exploited?

CVE-2006-6372 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-2006-6372 affect?

CVE-2006-6372 affects jab guest book. Severity is medium (CVSS 6.8). Multiple cross-site scripting (XSS) vulnerabilities in pbguestbook.php in JAB Guest Book 20061205 allow remote attackers to inject arbitrary web script or HTML via the (1) topic or (2) message parameter. NOTE: The provenance of this inform

How urgent is CVE-2006-6372?

Priority 40/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-6371 MEDIUM 6.8 MITIGATE Cross-site scripting (XSS) vulnerability in pbguestbook.php in JAB Guest Book allows remote attackers to injec

References

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