CVE-2021-30862 Cross-site scripting in iTunes U
Attackers can execute arbitrary JavaScript via malicious URLs in iTunes U, requiring users to upgrade to the latest version.
- 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-2021-30862?
CVE-2021-30862 is a medium-severity cross-site scripting vulnerability in Apple iTunes U, published on 24 Aug 2021. 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 validation issue was addressed with improved input sanitization. This issue is fixed in iTunes U 3.8.3. Processing a maliciously crafted URL may lead to arbitrary javascript code execution.
Weakness: CWE-20
Which versions are affected by CVE-2021-30862?
It affects 1 product.
Products include Apple Itunes U.
How do I fix CVE-2021-30862?
No fix has been published for CVE-2021-30862 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-2021-30862 being exploited?
There is no known exploitation of CVE-2021-30862 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.