Parallels Plesk Small Business PanelApplication · Parallels

CVE-2011-4757

HIGH · 10.0 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 →
100/100
Remediation priority · Urgent
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
Parallels Plesk Small Business Panel 10.2.0 generates a password form field without disabling the autocomplete feature, which makes it easier for remote attackers to bypass authentication by leveraging an unattended workstation, as demonstrated by forms in smb/auth and certain other files.

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

Parallels Plesk Small Business Panel 10.2.0 generates password form fields without the autocomplete='off' attribute, allowing browsers to cache credentials. Attackers with physical or local access to an unattended workstation can retrieve stored credentials from the browser cache and bypass authentication.

MitigationAdd the autocomplete='off' attribute to all password input fields in the affected forms within smb/auth and related authentication pages.

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 Small Business PanelApplication
Affected:= 10.2.0

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
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

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. Confirm Parallels Plesk Small Business Panel is installed
    Locate the Plesk Small Business Panel installation directory or check for running Plesk services/processes on the system
    Affected if The product is not present on the system
  2. Verify installed version is 10.2.0
    Check the installed version of Parallels Plesk Small Business Panel using the product's version reporting mechanism or version file
    Affected if The installed version is 10.2.0 (exact match)
  3. Inspect password form fields for autocomplete attribute
    Examine the HTML source of login forms in the smb/auth directory and related authentication pages to check if password input fields include the autocomplete='off' attribute
    Affected if Password fields lack the autocomplete='off' attribute, enabling browsers to cache credentials

A user is affected if Parallels Plesk Small Business Panel version 10.2.0 is installed and its password form fields do not have the autocomplete='off' attribute, allowing browser credential caching

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

Add the autocomplete='off' attribute to all password input fields in the affected forms within smb/auth and related authentication pages.

Fix this in Parallels Plesk Small Business Panel Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,040
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Scan for this in your stack

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dbcve dependency scanner

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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-2011-4757 in production — separate from our analysis above.

No notes yet

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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