ChromeWeb browser · Google
CVE-2017-15387
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 · uneditedInsufficient enforcement of Content Security Policy in Blink in Google Chrome prior to 62.0.3202.62 allowed a remote attacker to open javascript: URL windows when they should not be allowed to via a crafted HTML page.
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 confidenceCVE-2017-15387 is a Content Security Policy bypass vulnerability in Google Chrome's Blink rendering engine versions prior to 62.0.3202.62. The browser incorrectly allowed javascript: URL windows to open via crafted HTML pages even when the Content Security Policy should have blocked such actions. This CSP enforcement failure could enable malicious pages to bypass security restrictions designed to prevent script injection and unauthorized script execution.
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
< 62.0.3202.62
Debian LinuxOperating system
= 8.0= 9.0CVSS 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
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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 Chrome or Chromium browser versionOpen Chrome, go to Settings > About Chrome, or navigate to chrome://settings/help. For Chromium on Linux, run 'chromium --version' or 'google-chrome --version' in terminal.Affected if The displayed version number is less than 62.0.3202.62
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Check Debian system chromium package versionOn Debian systems, run 'dpkg -l | grep chromium' or 'apt show chromium' to list the installed chromium browser package version.Affected if The installed package version corresponds to a Chromium build less than 62.0.3202.62
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Identify if Content Security Policy is deployedReview your web applications to determine if Content Security Policy HTTP headers are configured and enforced on pages served by your organization.Affected if You have CSP policies configured AND you use an affected Chrome version below 62.0.3202.62, making the bypass potentially exploitable in your browsing environment
You are affected if you are using Google Chrome or Chromium browser versions below 62.0.3202.62 on your systems or in your organization.
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 data62.0.3202.62
Upgrade Google Chrome to version 62.0.3202.62 or later to receive the patch. Additionally, ensure Content Security Policy headers are properly configured on web applications to provide defense-in-depth protection against script injection attacks.
Fix this in Chrome
Scoped from the published advisory
- Consultation1.0 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 $1,200.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-15387 — 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-2017-15387 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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