CVE-2020-9952 Cross-site scripting in Safari
Attackers can execute arbitrary scripts via malicious web content in Safari and Apple OSes, potentially compromising user sessions.
- 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-2020-9952?
CVE-2020-9952 is a high-severity cross-site scripting vulnerability in Apple Icloud, published on 16 Oct 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 14.0 and iPadOS 14.0, tvOS 14.0, watchOS 7.0, Safari 14.0, iCloud for Windows 11.4, iCloud for Windows 7.21. Processing maliciously crafted web content may lead to a cross site scripting attack.
Weakness: CWE-79
Which versions are affected by CVE-2020-9952?
It affects 7 products.
Products include Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Safari, Apple Tvos, Apple Watchos and 1 more.
How do I fix CVE-2020-9952?
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-2020-9952 being exploited?
There is no known exploitation of CVE-2020-9952 in the wild and no public exploit code.
Other vulnerabilities in Apple Icloud
Sources
Also known as DEBIAN-CVE-2020-9952, GHSA-2hf4-pxq2-63h5, UBUNTU-CVE-2020-9952.