ChromeWeb browser · Google
CVE-2016-5226
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 · uneditedBlink in Google Chrome prior to 55.0.2883.75 for Linux, Windows and Mac executed javascript: URLs entered in the URL bar in the context of the current tab, which allowed a socially engineered user to XSS themselves by dragging and dropping a javascript: URL into the URL bar.
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 confidenceA Cross-Site Scripting (XSS) vulnerability in Blink (Google Chrome's rendering engine) allowed javascript: URLs entered in the URL bar to execute in the context of the current page rather than in a safe isolated context. By socially engineering a user to drag and drop a javascript: URL into the URL bar, an attacker could cause the script to run with the privileges of the current page.
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
ChromeWeb browser
<= 54.0.2840.99CVSS 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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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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Check installed Chrome versionOpen Chrome, click the three-dot menu in the top right, select Help, then select About Google Chrome. The version number will be displayed on the page that opens.Affected if The displayed version is 54.0.2840.99 or lower (any version up to and including 54.0.2840.99)
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Confirm the version number formatNote the full version string shown (for example, 54.0.2840.99). Ensure you are checking all four number groups separated by periods.Affected if The version number begins with 54 and the full version is 54.0.2840.99 or earlier
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Verify Chrome is the affected browserConfirm you are running Google Chrome and not another Chromium-based browser (such as Microsoft Edge, Opera, or Brave). This specific vulnerability affects Google Chrome.Affected if The browser is Google Chrome and the version meets the affected criteria in step 1
A user is affected if their installed Google Chrome version is 54.0.2840.99 or lower, making them vulnerable to javascript: URLs executing in the current page context when dragged into the URL bar.
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 dataUpdate Google Chrome to version 55.0.2883.75 or later, which contains the fix that prevents javascript: URLs from executing in the current tab context when entered via drag-and-drop.
Fix this in Chrome
Scoped from the published advisory
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-5226 — 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-2016-5226 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
- No spam, self-promotion, credentials, or personal data