CVE-2018-4133 Cross-site scripting in n/a

Medium 6.1 Published Updated

Remote attackers can inject arbitrary web script or HTML into Safari via crafted URLs, potentially compromising user sessions or data.

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-2018-4133?

CVE-2018-4133 is a medium-severity cross-site scripting vulnerability in Apple Safari, published on 3 Apr 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

An issue was discovered in certain Apple products. Safari before 11.1 is affected. The issue involves the "WebKit" component. A Safari cross-site scripting (XSS) vulnerability allows remote attackers to inject arbitrary web script or HTML via a crafted URL.

Weakness: CWE-79

Which versions are affected by CVE-2018-4133?

It affects 3 products.

Products include Apple Safari, Canonical Ubuntu Linux, Webkitgtk Webkitgtk\+.

How do I fix CVE-2018-4133?

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-2018-4133 being exploited?

There is no known exploitation of CVE-2018-4133 in the wild and no public exploit code.

All Apple Safari vulnerabilities

Sources

Also known as DEBIAN-CVE-2018-4133, GHSA-8r9c-gc7v-2v7w, UBUNTU-CVE-2018-4133.

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