Related Vulnerabilities: CVE-2016-9078  

Redirection from an HTTP connection to a data: URL assigns the referring site's origin to the data: URL in some circumstances. This can result in same-origin violations against a domain if it loads resources from malicious sites. Cross-origin setting of cookies has been demonstrated without the ability to read them.

Severity Critical

Remote Yes

Type Same-origin policy bypass

Description

Redirection from an HTTP connection to a data: URL assigns the referring site's origin to the data: URL in some circumstances. This can result in same-origin violations against a domain if it loads resources from malicious sites. Cross-origin setting of cookies has been demonstrated without the ability to read them.

AVG-90 firefox 50.0-1 50.0.2-1 Critical Fixed

01 Dec 2016 ASA-201612-1 AVG-90 firefox Critical multiple issues

https://www.mozilla.org/en-US/security/advisories/mfsa2016-91/