CVE-2021-43544

Description

When receiving a URL through a SEND intent, Firefox would have searched for the text, but subsequent usages of the address bar might have caused the URL to load unintentionally, which could lead to XSS and spoofing attacks. *This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 95.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.63%
Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2021-52/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1739934 issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2021-43544?
CVE-2021-43544 has been scored as a medium severity vulnerability.
How to fix CVE-2021-43544?
To fix CVE-2021-43544, 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-2021-43544 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-43544 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43544?
CVE-2021-43544 affects Mozilla Firefox.
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