CVE-2014-2866
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 · uneditedPaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 relies on client JavaScript code for access restrictions, which allows remote attackers to perform unspecified operations by modifying this code.
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 confidencePaperThin CommonSpot before 7.0.2 and 8.x before 8.0.3 enforces access restrictions using client-side JavaScript running in the browser rather than server-side validation. This allows attackers to bypass these restrictions by modifying or disabling the JavaScript code, gaining unauthorized access to functionality that should be protected.
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<= 7.0.1= 8.0.0= 8.0.1= 8.0.2CVSS 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
- Authentication
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/C:C/I:C/A:C
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 CommonSpot installation versionCheck the PaperThin CommonSpot version through the admin interface (typically under Site > Configuration or About) or by examining version files in the installation directory if accessibleAffected if The installed version is 7.0.1 or earlier, or is 8.0.0, 8.0.1, or 8.0.2
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Locate client-side access control scriptsExamine the HTML source of protected CommonSpot pages for JavaScript functions that enforce permissions, access controls, or visibility rules (look for JS validation functions in script tags or linked .js files)Affected if JavaScript-based permission checks exist on pages that should require authentication or authorization
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Test JavaScript bypass capabilityDisable or modify the client-side JavaScript validation using browser developer tools (Console or Network tab) and attempt to access functionality that should be restrictedAffected if Disabling or modifying the JavaScript allows access to features that were presented as restricted
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Verify server-side validation presenceReview server logs or use a proxy tool to examine server responses when accessing protected resources with JavaScript disabled or modifiedAffected if The server accepts requests without JavaScript-based controls and returns expected content without performing its own authorization checks
You are affected if your CommonSpot version falls within 7.0.1 or earlier, or 8.0.0-8.0.2, and the application relies on JavaScript to enforce access restrictions that can be bypassed client-side.
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.
dbcve · scopedMigrate all access control logic from client-side JavaScript to server-side validation. Every permission check must be enforced on the server before any sensitive operation is executed, regardless of any client-side controls.
Commonspot 7.0.2+ (for 7.x line) or Commonspot 8.0.3+ (for 8.x line)
- 1. Identify the currently installed Commonspot Content Server version
- 2. For versions <= 7.0.1: Upgrade to Commonspot 7.0.2 or later
- 3. For versions 8.0.0, 8.0.1, or 8.0.2: Upgrade to Commonspot 8.0.3 or later
- 4. After upgrading, verify that server-side access controls are properly enforced rather than relying on client-side JavaScript
- 5. Test that access restrictions cannot be bypassed by modifying client-side code
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation12.0 h
- Implementation40.0 h
- Testing16.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2014-2866 — 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-2014-2866 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
- No spam, self-promotion, credentials, or personal data