Vulnerable versions Opera for Windows, Mac and Linux to 2.12 inclusive (the latest version as of today). On versions prior to 9.50 check is not performed.
Works on desktop versions. From 9.50 to 2.12 under Windows, 12.10beta to 9.50 and did not check. Under Linux the latest work, the earlier did not check.
If anyone has the opportunity to test 12.10beta (all OS), 9.x-11.x (Linux) and 9.x-11.x (poppy), write result verification. upd: Version 12.01, 12.02 under MacOS vulnerable.