CVE-2006-6891: Vz (Adp) Forum 2.0.3 stores sensitive information under the web root with insufficient access control, which a

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MEDIUM 5.0DOWNGRADE

CVE-2006-6891 is a medium-severity flaw (CVSS 5.0) affecting vz forum. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vz (Adp) Forum 2.0.3 stores sensitive information under the web root with insufficient access control, which allows remote attackers to obtain the administrative account name and password hash via a direct request for users/admin.txt.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Published	2006-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: vz forum

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

Am I affected?

Timeline

2006-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:33 UTCUpdated Record last modified

vz forum vz forum DOWNGRADE

Affected: 2.0.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.3

1. Check installed version

apt-cache policy vz-forum || rpm -q vz-forum || vz-forum --version

2. No fixed release: DOWNGRADE to a release before 2.0.3 (Debian / Ubuntu)

apt-cache madison vz-forum sudo apt install vz-forum=<VERSION_BEFORE_2.0.3> sudo apt-mark hold vz-forum

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

dnf --showduplicates list vz-forum sudo dnf downgrade vz-forum-<VERSION_BEFORE_2.0.3> sudo dnf versionlock add vz-forum

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: Vz (Adp) Forum 2.0.3 - Remote Password Disclosure

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-2006-6891?

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

Is CVE-2006-6891 being exploited?

CVE-2006-6891 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-2006-6891 affect?

CVE-2006-6891 affects vz forum. Severity is medium (CVSS 5.0). Vz (Adp) Forum 2.0.3 stores sensitive information under the web root with insufficient access control, which allows remote attackers to obtain the administrative account name and password hash via a direct request for users/admin.txt.

How urgent is CVE-2006-6891?

Priority 44/100. Public exploit reference

References

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