CVE-2010-1126
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 · uneditedThe JavaScript implementation in WebKit allows remote attackers to send selected keystrokes to a form field in a hidden frame, instead of the intended form field in a visible frame, via certain calls to the focus method.
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 confidenceWebKit's JavaScript implementation has a vulnerability where calling the focus method can cause keystrokes to be directed to a form field in a hidden frame instead of the intended visible frame. This allows attackers to potentially intercept user input by manipulating which frame receives keyboard focus.
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 dataall versionsCVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
AV:N/AC:M/Au:N/C:P/I:P/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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Identify WebKit-based browser usageCheck which browser is in use. WebKit-based browsers include Safari, Chrome (older versions), and various mobile browsers. Look at browser user-agent string or browser settings.Affected if The user is running a WebKit-based browser from around 2010 or earlier that has not received security updates
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Check browser versionAccess browser's About/Version information (typically in Help menu or browser settings). Compare the version number to release dates - WebKit patches for this vulnerability were released around 2010.Affected if The installed WebKit browser version predates the 2010 security patches for this issue
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Verify JavaScript focus behavior in framesThis is a client-side logic vulnerability. Check if the browser handles focus() method calls on form elements across different frames correctly. This requires testing or code review of WebKit itself.Affected if The browser does not properly isolate focus between visible and hidden frames when the focus() method is called via JavaScript
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Assess presence of sensitive form fields in framesReview if any web applications being used contain login forms, payment fields, or other sensitive inputs within frames where focus could be manipulated.Affected if Sensitive form fields exist in frames and the browser is an unpatched WebKit variant from 2010
A user is affected if they are running an unpatched WebKit-based browser from 2010 or earlier while using web applications with sensitive form fields in frames.
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 dataEnsure WebKit-based browsers are updated to patched versions. Additionally, avoid sensitive form fields in frames where focus can be manipulated, or implement additional authentication checks for sensitive input.
- Consultation3.0 h
- Implementation6.0 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-2010-1126 — 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-2010-1126 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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