CVE-2011-4759
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 · uneditedParallels Plesk Small Business Panel 10.2.0 generates web pages containing external links in response to GET requests with query strings for client@1/domain@1/hosting/file-manager/ and certain other files, which makes it easier for remote attackers to obtain sensitive information by reading (1) web-server access logs or (2) web-server Referer logs, related to a "cross-domain Referer leakage" issue.
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 confidenceParallels Plesk Small Business Panel 10.2.0 generates web pages containing external links in responses to GET requests with specific query strings for paths like client@1/domain@1/hosting/file-manager/. This causes sensitive path information to leak via Referer headers when users click these external links, allowing attackers to obtain sensitive URL/path data by reading web server access logs or Referer logs.
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= 10.2.0CVSS 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
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:N/A:N
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 Parallels Plesk Small Business Panel installationLook for Plesk Small Business Panel in your installed software or check the product name/version via the Plesk admin interface or command line tools such as 'plesk version' or 'product info'Affected if The software is identified as Parallels Plesk Small Business Panel version 10.2.0
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Verify the exact installed versionRun the Plesk version command or check the installed packages to confirm the version number matches 10.2.0 exactlyAffected if The installed version is exactly 10.2.0 (not a later patched version)
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Confirm file-manager module is accessibleAttempt to access a path similar to /client@1/domain@1/hosting/file-manager/ or check if the file-manager feature is enabled in the Plesk hosting configurationAffected if The file-manager module is enabled and accessible via the web interface
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Examine web server access logs for Referer leakageReview your web server access logs (Apache, nginx, or IIS logs) for requests containing paths with 'file-manager' that generate external links, and check if Referer headers reveal sensitive path informationAffected if Logs show Referer headers containing internal paths like /client@N/domain@N/hosting/file-manager/ being sent to external sites
You are affected if Parallels Plesk Small Business Panel version 10.2.0 is installed with the file-manager module accessible and your web server logs contain Referer headers leaking internal path information.
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 to a patched version of Plesk Small Business Panel. Additionally, review and sanitize server logging configurations to limit exposure of sensitive path information in Referer headers.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-4759 — 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-2011-4759 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