CVE-2021-23956

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 85

Description The issue is related to an ambiguous file picker design that could confuse users into uploading a whole directory instead of a single file. This could potentially allow a remote attacker to gain unauthorized access to protected information due to errors in the user interface's representation of information. The estimated number of potentially affected devices and details about real-world incidents where this issue was exploited are not provided.

Recommendations For versions prior to 85, update to version 85 or later to address the issue. As a temporary workaround, consider using caution when selecting files for upload to avoid inadvertently uploading entire directories until the update is applied.