CVE-2020-12391 (NVD)

2020-05-26

Documents formed using data: URLs in an OBJECT element failed to inherit the CSP of the creating context. This allowed the execution of scripts that should have been blocked, albeit with a unique opaque origin. This vulnerability affects Firefox < 76.

Products Firefox
Type Incorrect Authorization (CWE-863)
First patch - None (likely due to unavailable code)
Links https://bugzilla.mozilla.org/show_bug.cgi?id=1457100
https://www.mozilla.org/security/advisories/mfsa2020-16/