Parallels Plesk PanelApplication · Parallels

CVE-2011-4737

MEDIUM · 5.0 CVSS v2.0 Published 2011-12-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
59/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

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 · unedited
The Control Panel in Parallels Plesk Panel 10.2.0 build 20110407.20 includes a submitted password within an HTTP response body, which allows remote attackers to obtain sensitive information by sniffing the network, as demonstrated by password handling in client@2/domain@1/odbc/dsn@1/properties/.

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 confidence

The Parallels Plesk Panel 10.2.0 Control Panel includes submitted passwords within HTTP response bodies, allowing remote attackers to capture sensitive credentials via network sniffing. The vulnerability exists in the ODBC DSN properties functionality where user input is echoed back in the response.

MitigationRemove password parameters from HTTP responses by processing credentials server-side only without echoing them back. Update to a patched version of Plesk Panel if available.

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
Parallels Plesk PanelApplication
Affected:= 10.2.0_build20110407.20

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Verify Parallels Plesk Panel installation
    Check for Plesk Panel by looking for the httpd administration interface typically on ports 8443 or 8880, or check for Plesk installation directories such as /usr/local/psa or C:\Program Files\Parallels on the server filesystem
    Affected if The system is running Parallels Plesk Panel
  2. Determine installed Plesk Panel version
    Access the Plesk administrator login page and check the version information typically displayed in the footer, or run the command 'plesk --version' or check /usr/local/psa/version on Linux systems
    Affected if The version is 10.2.0 with build 20110407.20
  3. Locate ODBC DSN configuration interface
    Log into the Plesk control panel as an administrator and navigate to the ODBC DSN properties section, typically found under Databases or ODBC Data Sources in the control panel navigation
    Affected if The ODBC DSN properties functionality is accessible and exposed via the web interface
  4. Capture HTTP response from ODBC DSN form submission
    Use a web proxy or browser developer tools to intercept the HTTP response when submitting or viewing ODBC DSN configuration with a password field. Inspect the response body for plaintext password data
    Affected if The HTTP response body contains the submitted password in plaintext or as an echoed parameter value

The system is affected if it runs Parallels Plesk Panel version 10.2.0 build 20110407.20 with the ODBC DSN feature accessible and passwords appearing in HTTP responses.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Remove password parameters from HTTP responses by processing credentials server-side only without echoing them back. Update to a patched version of Plesk Panel if available.

Fix this in Parallels Plesk Panel Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,408.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2011-4737 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2011-4737 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

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.

What belongs here
  • 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