CVE-2017-5408

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 52 Firefox ESR versions prior to 45.8 Thunderbird versions prior to 52 Thunderbird versions prior to 45.8

Description The issue allows video files to load video captions cross-origin without checking for the presence of CORS headers, potentially leading to information disclosure for video captions.

Recommendations For Firefox versions prior to 52, update to version 52 or later. For Firefox ESR versions prior to 45.8, update to version 45.8 or later. For Thunderbird versions prior to 52, update to version 52 or later. For Thunderbird versions prior to 45.8, update to version 45.8 or later.