CVE-2016-10841
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 · uneditedThe bin/mkvhostspasswd script in cPanel before 11.54.0.4 discloses password hashes (SEC-73).
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 confidenceThe bin/mkvhostspasswd script in cPanel versions prior to 11.54.0.4 contains an information disclosure vulnerability that exposes password hashes to unauthorized users. The script fails to properly restrict access to sensitive credential data, allowing attackers with local or limited access to obtain hashed passwords.
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>= 11.48.0.5, < 11.48.5.2>= 11.50.0.4, < 11.50.4.3>= 11.51.9999.98, < 11.52.2.4>= 11.54.0.0, < 11.54.0.4CVSS 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
- High
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/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 checksWork through these to decide whether this CVE applies to you.
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Identify cPanel versionRun the command to retrieve the installed cPanel version on the system (for example, checking /usr/local/cpanel/version or using the cPanel version command)Affected if The installed version falls within one of these ranges: 11.48.0.5 to 11.48.5.2, 11.50.0.4 to 11.50.4.3, 11.51.9999.98 to 11.52.2.4, or 11.54.0.0 to 11.54.0.3
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Locate the mkvhostspasswd scriptFind the bin/mkvhostspassasswd script within the cPanel installation directoryAffected if The script exists on the system and is accessible to unauthorized users due to weak permissions
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Check script file permissionsInspect the file permissions on the mkvhostspasswd script to determine if it is readable or executable by non-privileged usersAffected if The script has overly permissive access controls that allow unauthorized local users to execute or read it
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Verify password hash exposureAttempt to run the mkvhostspasswd script or inspect its output to confirm whether password hashes are exposed without proper authenticationAffected if Running the script reveals hashed passwords or sensitive credential data to unauthorized users
You are affected if your cPanel version is within the vulnerable ranges AND the mkvhostspasswd script is accessible, allowing exposure of password hashes to unauthorized local users.
Generated from the published advisory. Verify against your own configuration.
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 data11.48.5.211.50.4.311.52.2.4
Upgrade cPanel to version 11.54.0.4 or later to obtain the patch for SEC-73. If immediate patching is not feasible, restrict access to the mkvhostspasswd script and monitor for unauthorized access to password data.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-10841 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2016-10841 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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