CVE-2019-6204 Cross-site scripting in Safari

Medium 6.1 Published Updated

Enabling Safari Reader on a malicious webpage allows universal cross-site scripting, potentially leading to code execution or account takeover.

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
None listed

What is CVE-2019-6204?

CVE-2019-6204 is a medium-severity cross-site scripting vulnerability in Apple Iphone Os, published on 18 Dec 2019. 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

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, Safari 12.1. Enabling the Safari Reader feature on a maliciously crafted webpage may lead to universal cross site scripting.

Weakness: CWE-79

Which versions are affected by CVE-2019-6204?

It affects 2 products.

Products include Apple Iphone Os, Apple Safari.

How do I fix CVE-2019-6204?

No fix has been published for CVE-2019-6204 yet. Limit exposure of the affected software until one is available.

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-2019-6204 being exploited?

There is no known exploitation of CVE-2019-6204 in the wild and no public exploit code.

All Apple Iphone Os vulnerabilities

Sources

Also known as GHSA-r5q9-989v-wqpc.

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