CVE-2020-6830

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 was being used for JS-to-native also, but it isn't needed in this case, and its usage was also leaking this token. This vulnerability affects Firefox for iOS < 25.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.32%
Vendor Advisory mozilla.org
Affected: Mozilla Firefox for iOS
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2020-15/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1632387 permissions required

Frequently Asked Questions

What is the severity of CVE-2020-6830?
CVE-2020-6830 has been scored as a high severity vulnerability.
How to fix CVE-2020-6830?
To fix CVE-2020-6830, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-6830 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-6830 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-6830?
CVE-2020-6830 affects Mozilla Firefox for iOS.
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