"This universal cross-site scripting vulnerability (CVE-2011-2107) could be used to take actions on a user's behalf on any website or webmail provider, if the user visits a malicious website," Adobe warned in an advisory.
The release of this Flash Player patch follows reports that the vulnerability is being exploited in the wild in active targeted attacks.
Adobe recommends users of Adobe Flash Player 10.3.181.16 and earlier versions for Windows, Macintosh, Linux and Solaris update to Adobe Flash Player 10.3.181.22 (10.3.181.23 for ActiveX). Adobe expects to make available an update for Flash Player 10.3.185.22 for Android during the week of June 6, 2011.
The company said it is still investigating the impact to the Authplay.dll component that ships with Adobe Reader and Acrobat X (10.0.2) and earlier 10.x and 9.x versions of Adobe Reader and Acrobat for Windows and Macintosh operating systems.