Subrion CmsApplication · Subrion

CVE-2018-14836

MEDIUM · 6.5 CVSS v3.0 Published 2018-08-02
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
71/100
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
Subrion 4.2.1 is vulnerable to Improper Access control because user groups not having access to the Admin panel are able to access it (but not perform actions) if the Guests user group has access to the Admin panel.

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

Subrion CMS 4.2.1 has an Improper Access Control vulnerability where user groups without admin panel permissions can still access the admin panel interface (view-only) when the Guest user group has been granted admin panel access. This represents a vertical privilege escalation allowing unauthorized visibility into administrative functions.

MitigationReview and correct user group permission configurations in Subrion to ensure only intended administrative groups have access to the admin panel, and implement proper server-side authorization checks regardless of guest group settings.

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
Subrion CmsApplication
Affected:= 4.2.1

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
High
Integrity
None
Availability
None

CVSS:3.0/AV:N/AC:L/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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Subrion CMS version
    Locate the version file or admin panel about page - typically found in /includes/version.php, /changelog.txt, or via Admin Dashboard > Configuration > About
    Affected if Installed version is exactly 4.2.1
  2. Check Guest group admin panel permission
    Navigate to Admin Dashboard > User Groups > Permissions (or similar permissions section) and verify if the Guest (or Public) group has any admin panel access enabled
    Affected if Guest user group has admin panel access (view-only or any level) granted in group permissions
  3. Verify non-admin group admin panel access
    Create or use a test user account belonging to a non-administrative user group (not Admin), then attempt to access the admin panel URL directly
    Affected if Non-admin users can view or access the admin panel interface despite lacking admin permissions
  4. Inspect user group permission configuration
    Review the user group permission settings in the database (typically table ia_acl or similar) or configuration file to see which groups are mapped to admin panel access rights
    Affected if Multiple user groups have admin panel access enabled, or permissions are incorrectly inherited from the Guest group configuration

You are affected if running Subrion CMS 4.2.1 AND the Guest group has admin panel access enabled, allowing users without admin privileges to view administrative interface elements.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Review and correct user group permission configurations in Subrion to ensure only intended administrative groups have access to the admin panel, and implement proper server-side authorization checks regardless of guest group settings.

Fix this in Subrion Cms Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
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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-2018-14836 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
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