CVE-2016-10808
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 · uneditedIn cPanel before 57.9999.54, /scripts/addpop and /scripts/delpop exposed TTYs (SEC-113).
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 cPanel scripts /scripts/addpop and /scripts/delpop exposed TTY (terminal) interfaces, potentially allowing attackers to inject terminal escape sequences or manipulate interactive shell sessions. This TTY exposure in version before 57.9999.54 could lead to command injection or session hijacking.
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>= 11.50.0.4, < 11.50.6.2>= 11.51.9999.98, < 11.52.6.1>= 11.54.0.0, < 11.54.0.24>= 55.9999.61, < 56.0.15>= 57.9999.48, < 57.9999.54CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 if cPanel is installedRun: cat /usr/local/cpanel/version or ls -la /usr/local/cpanelAffected if No cPanel installation is found, this CVE does not apply
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Check the installed cPanel versionCompare the version output from the previous step against the affected ranges: >= 11.50.0.4 to < 11.50.6.2, >= 11.51.9999.98 to < 11.52.6.1, >= 11.54.0.0 to < 11.54.0.24, >= 55.9999.61 to < 56.0.15, >= 57.9999.48 to < 57.9999.54Affected if The installed version falls within any of these ranges, the system is potentially affected
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Verify the vulnerable scripts existCheck for the presence of /scripts/addpop and /scripts/delpop on the filesystem using ls -laAffected if These scripts exist on the system and the cPanel version is in the affected range, the system is vulnerable
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Check if scripts are executable and accessibleRun: ls -la /scripts/addpop /scripts/delpop to verify execute permissionsAffected if The scripts are present with execute permissions and the version is in the affected range, the TTY exposure can be triggered
If the system runs a cPanel version within the listed affected ranges and the /scripts/addpop or /scripts/delpop scripts exist and are accessible, the environment is affected by this CVE.
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 data11.50.6.211.52.6.111.54.0.24
Update cPanel to version 57.9999.54 or later to patch the TTY exposure vulnerability. If immediate patching is not possible, restrict access to these scripts to trusted administrators only.
- Consultation1.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-10808 — 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-2016-10808 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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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.
- 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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