CVE-2002-0462: bigsam_guestbook.php for Big Sam (Built-In Guestbook Stand-Alone Module) 1.1.08 and earlier allows remote atta

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MEDIUM 6.4DOWNGRADE

CVE-2002-0462 is a medium-severity flaw (CVSS 6.4) affecting big sam. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

bigsam_guestbook.php for Big Sam (Built-In Guestbook Stand-Alone Module) 1.1.08 and earlier allows remote attackers to cause a denial of service (CPU consumption) or obtain the absolute path of the web server via a displayBegin parameter with a very large number, which leaks the web path in an error message when PHP safe_mode is enabled, or consumes resources when safe_mode is not enabled.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.4 (Medium)
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Published	2002-08-12
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: big sam

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

Am I affected?

Timeline

2002-08-12 04:00 UTCPublished CVE record published
2026-06-16 21:57 UTCUpdated Record last modified

big sam big sam DOWNGRADE

Affected: 1.1.08

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.08

1. Check installed version

apt-cache policy big-sam || rpm -q big-sam || big-sam --version

2. No fixed release: DOWNGRADE to a release before 1.1.08 (Debian / Ubuntu)

apt-cache madison big-sam sudo apt install big-sam=<VERSION_BEFORE_1.1.08> sudo apt-mark hold big-sam

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

dnf --showduplicates list big-sam sudo dnf downgrade big-sam-<VERSION_BEFORE_1.1.08> sudo dnf versionlock add big-sam

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-2002-0462?

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

Is CVE-2002-0462 being exploited?

CVE-2002-0462 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-2002-0462 affect?

CVE-2002-0462 affects big sam. Severity is medium (CVSS 6.4). bigsam_guestbook.php for Big Sam (Built-In Guestbook Stand-Alone Module) 1.1.08 and earlier allows remote attackers to cause a denial of service (CPU consumption) or obtain the absolute path of the web server via a displayBegin parameter wi

How urgent is CVE-2002-0462?

Priority 49/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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