SafariWeb browser · Apple
CVE-2017-7089
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 · uneditedAn issue was discovered in certain Apple products. iOS before 11 is affected. Safari before 11 is affected. iCloud before 7.0 on Windows is affected. The issue involves the "WebKit" component. It allows remote attackers to conduct Universal XSS (UXSS) attacks via a crafted web site that is mishandled during parent-tab processing.
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 Universal XSS (UXSS) vulnerability in WebKit allows remote attackers to bypass the Same-Origin Policy via a crafted website mishandled during parent-tab processing. This affects Safari, iOS, and iCloud Windows client prior to their respective 11/7.0 versions, enabling script execution in the context of any website the user visits.
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
SafariWeb browser
<= 10.1.2<= 10.3.3<= 10.2.2<= 6.9.1<= 12.6.2CVSS 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
- 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 Safari version on macOSOpen Safari, then go to Safari > About Safari. The version number displays next to the Safari logo.Affected if The displayed version is 10.1.2 or earlier.
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Check iOS version on iPhone or iPadOpen Settings app, tap General, then tap About. The Version field shows the iOS release number.Affected if The version shows 10.3.3 or earlier (for example, 10.3.2, 10.3.1, 10.3, 10.2.x, 10.1.x, or 10.0.x).
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Check tvOS version on Apple TVGo to Settings > General > About > Version on the Apple TV device.Affected if The version shows 10.2.2 or earlier.
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Check iCloud for Windows versionOpen iCloud on Windows, click the gear icon or go to Help > About iCloud. The version number is displayed.Affected if The version is 6.9.1 or earlier.
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Check iTunes version on WindowsOpen iTunes, then go to Help > About iTunes. The version appears in the dialog box.Affected if The version shows 12.6.2 or earlier.
If any of the installed Apple products listed above are at or below the specified vulnerable versions, the environment is affected by this UXSS vulnerability.
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 affected Apple products to iOS 11+, Safari 11+, or iCloud for Windows 7.0+ to remediate this vulnerability. Restrict browser access to untrusted websites as a temporary mitigation until patches can be applied.
Fix this in Safari
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-7089 — 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-2017-7089 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