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CpanelApplication

CVE-2019-17378

MEDIUM · 6.1 CVSS v3.1 Published 2019-10-09
Fix available
A fix is available. Upgrade to 78.0.39 / 82.0.15 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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 82.0.15 allows self XSS in the SSL Key Delete interface (SEC-526).

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

A self Cross-Site Scripting (XSS) vulnerability exists in cPanel versions before 82.0.15 within the SSL Key Delete interface. The vulnerability allows an attacker to inject malicious JavaScript that executes when a user interacts with the vulnerable page, potentially compromising the user's session.

MitigationUpgrade cPanel to version 82.0.15 or later to patch the vulnerability. Alternatively, restrict administrative access to trusted personnel and implement Content Security Policy headers as a compensating control until upgrade is possible.

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, < 78.0.39>= 81.9999.242, < 82.0.15

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
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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 version via command line
    Run /usr/local/cpanel/cpanel -V or rpm -q cpanel
    Affected if The version output falls within 77.9999.110 to 78.0.38 OR 81.9999.242 to 82.0.14
  2. Check cPanel version via WHM
    Log into WHM and navigate to Server Information or run: grep CPANEL /etc/cpupdate.conf
    Affected if The displayed version matches the affected ranges above
  3. Verify SSL Key Delete interface exists
    Access cPanel > SSL/TLS > SSL Key Delete interface, or check for /var/cpanel/ssl directory
    Affected if The interface is present and accessible to user accounts
  4. Confirm user access to SSL management
    Check if untrusted or low-privilege users have access to cPanel user interfaces, particularly SSL/TLS features
    Affected if Regular user accounts can access the SSL Key Delete interface without admin oversight

If the installed cPanel version is 77.9999.110 through 78.0.38, or 81.9999.242 through 82.0.14, AND the SSL Key Delete interface is accessible to users, the environment is affected by this self XSS vulnerability.

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 78.0.39 / 82.0.15 or later
Fixed in 78.0.3982.0.15
Interim mitigation

Upgrade cPanel to version 82.0.15 or later to patch the vulnerability. Alternatively, restrict administrative access to trusted personnel and implement Content Security Policy headers as a compensating control until upgrade is possible.

Fix this in Cpanel Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing3.0 h
  • Review / QA2.0 h
8.0 hours of engineering $1,390
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,224.

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-2019-17378 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