CVE-2009-2592: SQL injection vulnerability in guestbook.php in PHPJunkYard GBook 1.6 allows remote attackers to execute arbit

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HIGH 7.5DOWNGRADE

CVE-2009-2592 is a high-severity flaw (CVSS 7.5) affecting gbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in guestbook.php in PHPJunkYard GBook 1.6 allows remote attackers to execute arbitrary SQL commands via the mes_id parameter.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-89
Published	2009-07-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phpjunkyard

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

Am I affected?

Timeline

2009-07-24 16:30 UTCPublished CVE record published
2026-06-16 23:09 UTCUpdated Record last modified

phpjunkyard gbook DOWNGRADE

Affected: 1.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.6 (Debian / Ubuntu)

apt-cache madison gbook sudo apt install gbook=<VERSION_BEFORE_1.6> sudo apt-mark hold gbook

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

dnf --showduplicates list gbook sudo dnf downgrade gbook-<VERSION_BEFORE_1.6> 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-2009-2592?

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

Is CVE-2009-2592 being exploited?

CVE-2009-2592 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-2009-2592 affect?

CVE-2009-2592 affects gbook. Severity is high (CVSS 7.5). SQL injection vulnerability in guestbook.php in PHPJunkYard GBook 1.6 allows remote attackers to execute arbitrary SQL commands via the mes_id parameter.

How urgent is CVE-2009-2592?

Priority 43/100. High severity

Software pages

PHP vulnerabilities

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References

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