CVE-2007-2100: FAC Guestbook 2.0 stores sensitive information under the web root with insufficient access control, which allo

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HIGH 10.0DOWNGRADE

CVE-2007-2100 is a high-severity flaw (CVSS 10.0) affecting fac guestbook. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FAC Guestbook 2.0 stores sensitive information under the web root with insufficient access control, which allows remote attackers to download a database via a direct request for db/Gdb.mdb.

Why this priority

Critical severity

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Published	2007-04-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: fac guestbook

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

Am I affected?

Timeline

2007-04-18 10:19 UTCPublished CVE record published
2026-06-16 22:38 UTCUpdated Record last modified

fac guestbook fac guestbook DOWNGRADE

Affected: 2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0

1. Check installed version

apt-cache policy fac-guestbook || rpm -q fac-guestbook || fac-guestbook --version

2. No fixed release: DOWNGRADE to a release before 2.0 (Debian / Ubuntu)

apt-cache madison fac-guestbook sudo apt install fac-guestbook=<VERSION_BEFORE_2.0> sudo apt-mark hold fac-guestbook

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

dnf --showduplicates list fac-guestbook sudo dnf downgrade fac-guestbook-<VERSION_BEFORE_2.0> sudo dnf versionlock add fac-guestbook

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-2007-2100?

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

Is CVE-2007-2100 being exploited?

CVE-2007-2100 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-2007-2100 affect?

CVE-2007-2100 affects fac guestbook. Severity is high (CVSS 10.0). FAC Guestbook 2.0 stores sensitive information under the web root with insufficient access control, which allows remote attackers to download a database via a direct request for db/Gdb.mdb.

How urgent is CVE-2007-2100?

Priority 56/100. Critical severity

Related CVEs

CVE-2007-2101 HIGH 10.0 DOWNGRADE FAC Guestbook 3.01 stores sensitive information under the web root with insufficient access control, which all

References

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