CVE-2020-3902 Cross-site scripting in Safari
Attackers can execute arbitrary scripts in the victim's browser context by tricking them into visiting malicious web content.
- 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-2020-3902?
CVE-2020-3902 is a medium-severity cross-site scripting vulnerability in Apple Icloud, published on 1 Apr 2020. 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 input validation issue was addressed with improved input validation. This issue is fixed in iOS 13.4 and iPadOS 13.4, tvOS 13.4, Safari 13.1, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Processing maliciously crafted web content may lead to a cross site scripting attack.
Weakness: CWE-79
Which versions are affected by CVE-2020-3902?
It affects 6 products.
Products include Apple Icloud, Apple Ipad Os, Apple Iphone Os, Apple Itunes, Apple Safari, Apple Tvos.
How do I fix CVE-2020-3902?
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-2020-3902 being exploited?
There is no known exploitation of CVE-2020-3902 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as DEBIAN-CVE-2020-3902, GHSA-3pw6-wvqq-cwg5, UBUNTU-CVE-2020-3902.