CVE-2006-3211: Cross-site scripting (XSS) vulnerability in sign.php in cjGuestbook 1.3 and earlier allows remote attackers to

Q: How do I fix CVE-2006-3211?

cjguestbook: upgrade to newer than 1.3. Exact commands for each OS are on this page.

Q: Is CVE-2006-3211 being exploited?

CVE-2006-3211 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-2006-3211 affect?

CVE-2006-3211 affects cjguestbook. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in sign.php in cjGuestbook 1.3 and earlier allows remote attackers to inject Javascript code via a javascript URI in an img bbcode tag in the comments parameter.

Q: How urgent is CVE-2006-3211?

Priority 34/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2006-3211 is a medium-severity flaw (CVSS 4.3) affecting cjguestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in sign.php in cjGuestbook 1.3 and earlier allows remote attackers to inject Javascript code via a javascript URI in an img bbcode tag in the comments parameter.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Weakness	CWE-79
Published	2006-06-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: cjguestbook project

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

cjguestbook project cjguestbook UPGRADE

Affected: <= 1.3

Fixed in: newer than 1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cjguestbook

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-2006-3211?

cjguestbook: upgrade to newer than 1.3. Exact commands for each OS are on this page.

Is CVE-2006-3211 being exploited?

CVE-2006-3211 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-2006-3211 affect?

CVE-2006-3211 affects cjguestbook. Severity is medium (CVSS 4.3). Cross-site scripting (XSS) vulnerability in sign.php in cjGuestbook 1.3 and earlier allows remote attackers to inject Javascript code via a javascript URI in an img bbcode tag in the comments parameter.

How urgent is CVE-2006-3211?

Priority 34/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2006-3212 MEDIUM 4.3 UPGRADE Cross-site scripting (XSS) vulnerability in sign.php in cjGuestbook 1.3 and earlier allows remote attackers to

References

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