CVE-2000-1171: Directory traversal vulnerability in cgiforum.pl script in CGIForum 1.0 allows remote attackers to ready arbit

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MEDIUM 5.0DOWNGRADE

CVE-2000-1171 is a medium-severity flaw (CVSS 5.0) affecting cgiforum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in cgiforum.pl script in CGIForum 1.0 allows remote attackers to ready arbitrary files via a .. (dot dot) attack in the "thesection" parameter.

Why this priority

EPSS top 5%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	8.3% (top 5%)
CISA exploited list	No
Published	2001-01-09
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: markus triska

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

Am I affected?

Timeline

2001-01-09 05:00 UTCPublished CVE record published
2026-06-16 21:53 UTCUpdated Record last modified

markus triska cgiforum DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison cgiforum sudo apt install cgiforum=<VERSION_BEFORE_1.0> sudo apt-mark hold cgiforum

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

dnf --showduplicates list cgiforum sudo dnf downgrade cgiforum-<VERSION_BEFORE_1.0> sudo dnf versionlock add cgiforum

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Markus Triska CGIForum 1.0 - 'thesection' Directory Traversal

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-2000-1171?

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

Is CVE-2000-1171 being exploited?

CVE-2000-1171 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-2000-1171 affect?

CVE-2000-1171 affects cgiforum. Severity is medium (CVSS 5.0). Directory traversal vulnerability in cgiforum.pl script in CGIForum 1.0 allows remote attackers to ready arbitrary files via a .. (dot dot) attack in the "thesection" parameter.

How urgent is CVE-2000-1171?

Priority 46/100. EPSS top 5%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2002-1902 MEDIUM 5.0 DOWNGRADE CGIForum 1.0 through 1.05 allows remote attackers to cause a denial of service (infinite recursion) by creatin

References

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