CVE-2022-34474 Open redirect in Firefox
Firefox fails to block external protocol redirects in sandboxed iframes, allowing potential security bypasses. Users should upgrade to version 102 or later.
- 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-2022-34474?
CVE-2022-34474 is a medium-severity vulnerability in Mozilla Firefox, published on 22 Dec 2022. 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
Even when an iframe was sandboxed with <code>allow-top-navigation-by-user-activation</code>, if it received a redirect header to an external protocol the browser would process the redirect and prompt the user as appropriate. This vulnerability affects Firefox < 102.
Weakness: CWE-601
Which versions are affected by CVE-2022-34474?
It affects 1 product.
Products include Mozilla Firefox.
How do I fix CVE-2022-34474?
Upgrade to a fixed version.
Is CVE-2022-34474 being exploited?
There is no known exploitation of CVE-2022-34474 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-v9f2-7gjf-86f5, UBUNTU-CVE-2022-34474.