CVE-2005-1647: Gurgens (GASoft) Guest Book 2.1 stores the db/Genid.dat database file under the web document root with insuffi

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HIGH 7.5DOWNGRADE

CVE-2005-1647 is a high-severity flaw (CVSS 7.5) affecting gurgens guest book. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Gurgens (GASoft) Guest Book 2.1 stores the db/Genid.dat database file under the web document root with insufficient access control, which allows remote attackers to obtain and decrypt usernames and passwords.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Published	2005-05-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: gurgens

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

Am I affected?

Timeline

2005-05-18 04:00 UTCPublished CVE record published
2026-06-16 22:13 UTCUpdated Record last modified

gurgens gurgens guest book DOWNGRADE

Affected: 2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.1 (Debian / Ubuntu)

apt-cache madison gurgens-guest-book sudo apt install gurgens-guest-book=<VERSION_BEFORE_2.1> sudo apt-mark hold gurgens-guest-book

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

dnf --showduplicates list gurgens-guest-book sudo dnf downgrade gurgens-guest-book-<VERSION_BEFORE_2.1> sudo dnf versionlock add gurgens-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-2005-1647?

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

Is CVE-2005-1647 being exploited?

CVE-2005-1647 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-2005-1647 affect?

CVE-2005-1647 affects gurgens guest book. Severity is high (CVSS 7.5). Gurgens (GASoft) Guest Book 2.1 stores the db/Genid.dat database file under the web document root with insufficient access control, which allows remote attackers to obtain and decrypt usernames and passwords.

How urgent is CVE-2005-1647?

Priority 51/100. High severity; Public exploit reference

References

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