### [CVE-2016-5268](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-5268) ![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue) ![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen) ### Description Mozilla Firefox before 48.0 does not properly set the LINKABLE and URI_SAFE_FOR_UNTRUSTED_CONTENT flags of about: URLs that are used for error pages, which makes it easier for remote attackers to conduct spoofing attacks via a crafted URL, as demonstrated by misleading text after an about:neterror?d= substring. ### POC #### Reference - https://bugzilla.mozilla.org/show_bug.cgi?id=1253673 #### Github No PoCs found on GitHub currently.