CVE-2008-6456: SQL injection vulnerability in the HBook (h_book) extension 2.3.0 and earlier for TYPO3 allows remote attacker

Q: How do I fix CVE-2008-6456?

hbook: upgrade to newer than 2.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2008-6456 being exploited?

CVE-2008-6456 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-2008-6456 affect?

CVE-2008-6456 affects hbook. Severity is high (CVSS 7.5). SQL injection vulnerability in the HBook (h_book) extension 2.3.0 and earlier for TYPO3 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.

This month

HIGH 7.5UPGRADE

CVE-2008-6456 is a high-severity flaw (CVSS 7.5) affecting hbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in the HBook (h_book) extension 2.3.0 and earlier for TYPO3 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-89
Published	2009-03-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: martin helmich

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

Am I affected?

Timeline

2009-03-13 10:30 UTCPublished CVE record published
2026-06-16 23:02 UTCUpdated Record last modified

martin helmich hbook UPGRADE

Affected: <= 2.3.0

Fixed in: newer than 2.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.3.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hbook

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-2008-6456?

hbook: upgrade to newer than 2.3.0. Exact commands for each OS are on this page.

Is CVE-2008-6456 being exploited?

CVE-2008-6456 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-2008-6456 affect?

CVE-2008-6456 affects hbook. Severity is high (CVSS 7.5). SQL injection vulnerability in the HBook (h_book) extension 2.3.0 and earlier for TYPO3 allows remote attackers to execute arbitrary SQL commands via unspecified vectors.

How urgent is CVE-2008-6456?

Priority 42/100. High severity

Software pages

TYPO3 vulnerabilities

References

← Back to latest CVEs