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CpanelApplication

CVE-2020-10116

MEDIUM · 5.3 CVSS v3.1 Published 2020-03-17
Fix available
A fix is available. Upgrade to 78.0.45 / 84.0.20 or later.
See remediation →
62/100
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
cPanel before 84.0.20 allows attackers to bypass intended restrictions on features and demo accounts via WebDisk UAPI calls (SEC-541).

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

cPanel before version 84.0.20 contains an access control bypass vulnerability where attackers can use WebDisk UAPI calls to circumvent intended restrictions on features and demo accounts (SEC-541). This allows unauthorized access to functionality that should be restricted.

MitigationUpdate cPanel to version 84.0.20 or later to apply the vendor patch that addresses this access control bypass.

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
CpanelApplication
Affected:>= 77.9999.110, < 78.0.45>= 83.9999.115, < 84.0.20

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
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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. Determine installed cPanel version
    Run command: /usr/local/cpanel/version or check via WHM interface in Server Status > cPanel Version
    Affected if Version falls within 77.9999.110 through 78.0.44, or 83.9999.115 through 84.0.19
  2. Verify WebDisk feature status
    Check if WebDisk (also called WebDAV) is enabled on the server via WHM > Feature Manager or by examining account configurations
    Affected if WebDisk is enabled and the cPanel version is in the affected range
  3. Identify demo accounts on the system
    List accounts with demo status using WHM > List Accounts or command line: whmapi1 listaccounts with demo filter
    Affected if Demo accounts exist and the cPanel version is in the affected range

The environment is affected if cPanel version is 77.9999.110 to 78.0.44, or 83.9999.115 to 84.0.19, AND WebDisk is enabled with demo or restricted feature accounts present.

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
Upgrade available Upgrade to 78.0.45 / 84.0.20 or later
Fixed in 78.0.4584.0.20
Interim mitigation

Update cPanel to version 84.0.20 or later to apply the vendor patch that addresses this access control bypass.

Fix this in Cpanel Scoped from the published advisory
  • Consultation1.0 h
  • Implementation2.0 h
  • Testing1.0 h
  • Review / QA1.0 h
5.0 hours of engineering $890
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,424.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2020-10116 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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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-2020-10116 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