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CpanelApplication

CVE-2016-10777

MEDIUM · 5.4 CVSS v3.0 Published 2019-08-06
Fix available
A fix is available. Upgrade to 11.54.0.33 / 56.0.39 or later.
See remediation →
60/100
Remediation priority · Elevated
Remotely reachable 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 60.0.25 allows self XSS in WHM Tweak Settings for autodiscover_host (SEC-177).

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

Self Cross-Site Scripting (XSS) vulnerability in cPanel's WHM (Web Host Manager) interface, specifically in the Tweak Settings page for the autodiscover_host field. An authenticated user with WHM access can inject malicious JavaScript that executes in their own browser when viewing the settings page.

MitigationUpgrade cPanel to version 60.0.25 or later to resolve the vulnerability. Until upgraded, restrict WHM access to trusted administrators only.

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:>= 11.54.0.0, < 11.54.0.33>= 55.9999.61, < 56.0.39>= 57.9999.48, < 58.0.37>= 59.9999.58, < 60.0.25

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

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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. Check cPanel/WHM version
    Log into WHM and navigate to Server Status > cPanel Version or run: whmapi1 version
    Affected if Installed version falls within any of these ranges: 11.54.0.0-11.54.0.32, 55.9999.61-56.0.38, 57.9999.48-58.0.36, or 59.9999.58-60.0.24
  2. Verify Tweak Settings access
    Navigate to WHM > Server Configuration > Tweak Settings
    Affected if User has access to the Tweak Settings page and can modify the autodiscover_host setting
  3. Locate autodiscover_host field
    In Tweak Settings, browse to the Autodiscover section or search for 'autodiscover_host'
    Affected if The autodiscover_host field is present and editable in the interface

User is affected if their cPanel version is within the affected ranges AND they have WHM access to modify the autodiscover_host field in Tweak Settings.

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 11.54.0.33 / 56.0.39 / 58.0.37 or later
Fixed in 11.54.0.3356.0.3958.0.37
Interim mitigation

Upgrade cPanel to version 60.0.25 or later to resolve the vulnerability. Until upgraded, restrict WHM access to trusted administrators only.

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

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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-2016-10777 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