CpanelApplication

CVE-2020-10117

CRITICAL · 9.1 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 →
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
cPanel before 84.0.20 mishandles enforcement of demo checks in the Market UAPI namespace (SEC-542).

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 · moderate confidence

cPanel before version 84.0.20 fails to properly enforce demo mode restrictions in the Market UAPI namespace, allowing authenticated users to bypass demo check controls and execute operations that should be restricted in demo mode. This could enable unauthorized administrative or billing operations through the Market API.

MitigationUpgrade cPanel to version 84.0.20 or later to remediate the demo check enforcement bypass in the Market UAPI namespace.

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
High
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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. Identify cPanel version
    Run 'cat /usr/local/cpanel/version' or 'cpanel -V' to obtain the installed cPanel version number
    Affected if The version falls within >=77.9999.110 and <78.0.45, OR >=83.9999.115 and <84.0.20
  2. Confirm demo mode is active
    Check for the existence of /var/cpanel/demo mode file or inspect the cPanel demo configuration at /var/cpanel/users/username for demo=1 setting
    Affected if Demo mode is enabled on the account being tested, because the vulnerability only allows bypassing demo restrictions
  3. Verify Market UAPI namespace is accessible
    Attempt to access a Market UAPI function via command line: /usr/local/cpanel/bin/uapi --module=Market --function=get_providers, or check if the Market module is loaded in /usr/local/cpanel/UAPI/Modules/
    Affected if The Market UAPI module is installed and accessible to the authenticated user context being tested

A system is affected only if it runs a cPanel version within the specified ranges AND has demo mode enabled, allowing the Market UAPI namespace to be accessed when it should be restricted.

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.

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

Upgrade cPanel to version 84.0.20 or later to remediate the demo check enforcement bypass in the Market UAPI namespace.

Recommended fix High confidence

cPanel version 84.0.20 (or 78.0.45 for the 78 branch)

  1. Log into WHM (Web Host Manager) as the root user
  2. Navigate to: Home >> cPanel >> Upgrade to Latest Version
  3. Click 'Upgrade to Latest Version' button to initiate the cPanel upgrade
  4. Alternatively, run '/scripts/upcp' via command line as root to perform the upgrade
  5. After upgrade completes, verify the version is 84.0.20 or later (or 78.0.45 or later for the 78 branch) using: 'cat /usr/local/cpanel/version'
  6. Verify the fix by confirming demo mode restrictions are properly enforced in the Market UAPI namespace
Caveat cPanel upgrades may occasionally introduce breaking changes to third-party plugins or custom configurations; always test in a staging environment first

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Cpanel Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing4.0 h
  • Review / QA2.0 h
10.0 hours of engineering $1,720
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,752.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2020-10117 — 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-2020-10117 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