CVE-2000-0066: WebSite Pro allows remote attackers to determine the real pathname of webdirectories via a malformed URL reque

Routine

MEDIUM 5.0DOWNGRADE

CVE-2000-0066 is a medium-severity flaw (CVSS 5.0) affecting website professional. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

WebSite Pro allows remote attackers to determine the real pathname of webdirectories via a malformed URL request.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Published	2000-01-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: oreilly

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

Am I affected?

Timeline

2000-01-13 05:00 UTCPublished CVE record published
2026-06-16 21:50 UTCUpdated Record last modified

oreilly website professional DOWNGRADE

Affected: 2.3.18 · 2.4.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.3.18

1. Check installed version

apt-cache policy website-professional || rpm -q website-professional || website-professional --version

2. No fixed release: DOWNGRADE to a release before 2.3.18 (Debian / Ubuntu)

apt-cache madison website-professional sudo apt install website-professional=<VERSION_BEFORE_2.3.18> sudo apt-mark hold website-professional

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

dnf --showduplicates list website-professional sudo dnf downgrade website-professional-<VERSION_BEFORE_2.3.18> sudo dnf versionlock add website-professional

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-2000-0066?

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

Is CVE-2000-0066 being exploited?

CVE-2000-0066 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-2000-0066 affect?

CVE-2000-0066 affects website professional. Severity is medium (CVSS 5.0). WebSite Pro allows remote attackers to determine the real pathname of webdirectories via a malformed URL request.

How urgent is CVE-2000-0066?

Priority 38/100. No elevated risk signals yet.

Related CVEs

CVE-2001-0626 HIGH 7.5 UPGRADE O'Reilly Website Professional 2.5.4 and earlier allows remote attackers to determine the physical path to the
CVE-2000-0623 HIGH 10.0 DOWNGRADE Buffer overflow in O'Reilly WebSite Professional web server 2.4 and earlier allows remote attackers to execute
CVE-2000-0622 HIGH 10.0 DOWNGRADE Buffer overflow in Webfind CGI program in O'Reilly WebSite Professional web server 2.x allows remote attackers

References

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