CVE-2001-0527: DCScripts DCForum versions 2000 and earlier allow a remote attacker to gain additional privileges by inserting

This week

HIGH 10.0DOWNGRADEDOWNGRADE

CVE-2001-0527 is a high-severity flaw (CVSS 10.0) affecting dcforum, dcforum 2000. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

DCScripts DCForum versions 2000 and earlier allow a remote attacker to gain additional privileges by inserting pipe symbols (|) and newlines into the last name in the registration form, which will create an extra entry in the registration database.

Why this priority

Critical severity
EPSS top 8%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	4.5% (top 8%)
CISA exploited list	No
Published	2001-08-14
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: dcscripts

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

Am I affected?

Timeline

2001-08-14 04:00 UTCPublished CVE record published
2026-06-16 21:54 UTCUpdated Record last modified

dcscripts dcforum DOWNGRADE

Affected: 6.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 6.0 (Debian / Ubuntu)

apt-cache madison dcforum sudo apt install dcforum=<VERSION_BEFORE_6.0> sudo apt-mark hold dcforum

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

dnf --showduplicates list dcforum sudo dnf downgrade dcforum-<VERSION_BEFORE_6.0> sudo dnf versionlock add dcforum

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.

dcscripts dcforum 2000 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 dcforum-2000 || rpm -q dcforum-2000 || dcforum-2000 --version

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

apt-cache madison dcforum-2000 sudo apt install dcforum-2000=<VERSION_BEFORE_1.0> sudo apt-mark hold dcforum-2000

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

dnf --showduplicates list dcforum-2000 sudo dnf downgrade dcforum-2000-<VERSION_BEFORE_1.0> sudo dnf versionlock add dcforum-2000

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: DCForum 6.0 - Remote Admin Privilege Arbitrary Commands

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-2001-0527?

dcforum: downgrade or apply the listed mitigation; dcforum 2000: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-0527 being exploited?

CVE-2001-0527 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-2001-0527 affect?

CVE-2001-0527 affects dcforum, dcforum 2000. Severity is high (CVSS 10.0). DCScripts DCForum versions 2000 and earlier allow a remote attacker to gain additional privileges by inserting pipe symbols (|) and newlines into the last name in the registration form, which will create an extra entry in the registration d

How urgent is CVE-2001-0527?

Priority 63/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2005-4311 MEDIUM 4.3 DOWNGRADE DOWNGRADE Cross-site scripting (XSS) vulnerability in DCForum 6.25 and earlier, and possibly DCForum+ 1.x, allows remote
CVE-2002-0226 HIGH 7.5 DOWNGRADE retrieve_password.pl in DCForum 6.x and 2000 generates predictable new passwords based on a sessionID, which a
CVE-2001-0437 MEDIUM 5.0 DOWNGRADE DOWNGRADE upload_file.pl in DCForum 2000 1.0 allows remote attackers to upload arbitrary files without authentication by
CVE-2001-0436 HIGH 7.5 DOWNGRADE DOWNGRADE dcboard.cgi in DCForum 2000 1.0 allows remote attackers to execute arbitrary commands by uploading a Perl prog
CVE-2000-1132 MEDIUM 6.4 DOWNGRADE DCForum cgforum.cgi CGI script allows remote attackers to read arbitrary files, and delete the program itself,

References

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