CVE-2006-0686
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedadd_user.php in Virtual Hosting Control System (VHCS) 2.4.7.1 and earlier does not check user privileges when adding a new administrative user, which allows remote attackers to gain unauthorized access.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysisA detailed technical summary for this CVE is being prepared.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 2.4.7.1CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedNo upgrade path available. VHCS 2.4.7.1 was the final release and the project is abandoned. Migrate to ISPConfig 3.x, cPanel, Plesk, or similar supported alternatives.
- 1. Isolate the affected VHCS server from untrusted networks immediately, as the CVSS score of 10 indicates critical remote compromise risk.
- 2. Since VHCS is an abandoned project with no official patches or maintained versions, do not attempt to continue using it.
- 3. Plan migration to a supported hosting control panel. Recommended alternatives include: ISPConfig 3.x (open source), cPanel, Plesk, or VestACP.
- 4. Before migration, backup all data including: user accounts, website content, email accounts, and configuration files.
- 5. Perform a complete migration to the new control panel on new hardware or a freshly provisioned VM.
- 6. Decommission the VHCS server after successful migration and data verification.
- 7. If continued temporary use is unavoidable, restrict access to add_user.php via web server configuration (deny from all except trusted admin IPs only).
Generated from the published advisory — verify against the referenced sources before acting.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2006-0686 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2006-0686 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data