CVE-2017-15430 Cross-site scripting in Chrome

Medium 4.3 Published Updated

Remote attackers can inject arbitrary scripts or HTML into Google Chrome via the Chromecast plugin, potentially executing code or bypassing security controls.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2017-15430?

CVE-2017-15430 is a medium-severity cross-site scripting vulnerability in Google Chrome, published on 28 Aug 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Insufficient data validation in Chromecast plugin in Google Chrome prior to 63.0.3239.84 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via a crafted HTML page.

Which versions are affected by CVE-2017-15430?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2017-15430?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2017-15430 being exploited?

There is no known exploitation of CVE-2017-15430 in the wild and no public exploit code.

All Google Chrome vulnerabilities

Sources

Also known as GHSA-4w38-8r8g-73j7, UBUNTU-CVE-2017-15430.

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