If the version of Adobe Flash plug-in you are using is out of date, you may see the message, “Blocked plug-in,” or “Flash Security Alert” or “Flash out-of-date” when attempting to view Flash content in Safari.
The move to block outdated Flash Player plug-ins comes after Adobe released Flash Player version 14.0.0.145 to push a fix that removes a security vulnerability (CVE-2014-4671), which could be exploited by using a tool called Rosetta Flash. Security News Apple: Flash Player Plug-in Blocked in SafariĪpple has issued a security notice stating that the company has blocked outdated versions of Adobe Flash in Safari due to vulnerabilities.
