CVE-2006-1386
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 · uneditedThe (1) rdiff and (2) preview scripts in TWiki 4.0 and 4.0.1 ignore access control settings, which allows remote attackers to read restricted areas and access restricted content in TWiki topics.
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 analysis · high confidenceThe rdiff and preview scripts in TWiki versions 4.0 and 4.0.1 fail to enforce access control settings, allowing remote attackers to bypass authentication and authorization mechanisms to read restricted topics and content that should only be accessible to privileged users.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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= 4.0= 4.0.1CVSS 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
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify the installed TWiki versionLocate and examine the TWiki version file (typically TWiki.pm or the version topic) to determine the running version numberAffected if The installed version is 4.0 or 4.0.1 specifically, matching the affected versions listed in the CVE
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Verify the rdiff script is presentLocate the rdiff script in the CGI bin directory of the TWiki installation (commonly under /bin/ or /cgi-bin/ depending on setup)Affected if The rdiff script exists and is accessible without authentication in a TWiki 4.0 or 4.0.1 installation
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Verify the preview script is presentLocate the preview script in the CGI bin directory of the TWiki installation (commonly under /bin/ or /cgi-bin/ depending on setup)Affected if The preview script exists and is accessible without authentication in a TWiki 4.0 or 4.0.1 installation
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Test access control enforcement on restricted topicsAttempt to access a topic that has restricted read permissions using the rdiff or preview script directly via URL, bypassing normal topic navigationAffected if The scripts allow reading topics that are configured with access restrictions that should deny unauthenticated or unprivileged access
A TWiki installation is affected if it runs version 4.0 or 4.0.1 and the rdiff or preview scripts can be accessed to view restricted topics without proper authorization checks being applied.
Generated from the published advisory. Verify against your own configuration.
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.
From vendor dataUpgrade TWiki to version 4.0.2 or later which contains the patched version, or manually add proper access control validation to the rdiff and preview scripts to respect topic-level restrictions.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2006-1386 — 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-2006-1386 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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- 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
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