CVE-2020-12404 Information disclosure in Firefox for iOS
A token leak in Firefox for iOS allows non-app code to bypass native-to-JS bridging protections, potentially exposing sensitive data or enabling unauthorized actions.
- 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-2020-12404?
CVE-2020-12404 is a medium-severity vulnerability in Mozilla Firefox Mobile, published on 9 Jul 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
For native-to-JS bridging the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That token could leak when used for downloading files. This vulnerability affects Firefox for iOS < 26.
Weakness: CWE-79
Which versions are affected by CVE-2020-12404?
It affects 1 product.
Products include Mozilla Firefox Mobile.
How do I fix CVE-2020-12404?
No fix has been published for CVE-2020-12404 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-12404 being exploited?
There is no known exploitation of CVE-2020-12404 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox Mobile
Sources
Also known as GHSA-5jfg-97qh-qq62.