CVE-2016-10569
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 · uneditedembedza is a module to create HTML snippets/embeds from URLs using info from oEmbed, Open Graph, meta tags. embedza versions below 1.2.4 download JavaScript resources over HTTP, which leaves it vulnerable to MITM attacks. It may be possible to cause remote code execution (RCE) by swapping out the requested JavaScript file with an attacker controlled JavaScript file if the attacker is on the network or positioned in between the user and the remote server.
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 confidenceembedza versions below 1.2.4 fetch JavaScript resources over unencrypted HTTP connections instead of HTTPS, allowing a man-in-the-middle attacker to intercept and inject malicious JavaScript code into the response, potentially leading to remote code execution on the application using this module.
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< 1.2.4CVSS 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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:H/PR:N/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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Check installed embedza versionRun 'npm list embedza' or check the package.json dependencies section for the embedza version numberAffected if The version listed is below 1.2.4 (e.g., 1.2.3, 1.2.0, etc.)
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Identify embedza usage in codebaseSearch source files for 'embedza' require/import statements and look for calls to methods that fetch external resources (such as '.fetch()', '.use()', or methods that process URLs)Affected if The application imports and uses embedza to process or fetch external URLs
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Determine if JavaScript resources are being fetchedReview the embedza configuration or usage to see if URLs pointing to .js files or JavaScript endpoints are being processedAffected if The application fetches or processes JavaScript URLs through embedza (the vulnerable code path)
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Verify HTTP usage in network trafficUse a network proxy (like Charles Proxy) or network logging to observe if embedza makes HTTP (not HTTPS) requests when fetching JavaScript resourcesAffected if HTTP requests to external domains are observed when the application processes JavaScript URLs
You are affected if embedza version is below 1.2.4 AND your application uses embedza to fetch or process JavaScript resources from external URLs.
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 data1.2.4
Upgrade embedza to version 1.2.4 or later which uses HTTPS for fetching external JavaScript resources.
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-10569 — 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-2016-10569 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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