The JavaScript engine in Opera before 11.60 does not properly implement the in operator, which allows remote attackers to bypass the Same Origin Policy via vectors related to variables on different web sites.
2011-12-07T19:55:02.567
2025-04-11T00:51:21.963
Deferred
CVSSv2: 6.4 (MEDIUM)
AV:N/AC:L/Au:N/C:P/I:P/A:N
10.0
4.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | opera | opera_browser | ≤ 11.60 | Yes |
| Application | opera | opera_browser | 5.0 | Yes |
| Application | opera | opera_browser | 5.0 | Yes |
| Application | opera | opera_browser | 5.0 | Yes |
| Application | opera | opera_browser | 5.0 | Yes |
| Application | opera | opera_browser | 5.0 | Yes |
| Application | opera | opera_browser | 5.0 | Yes |
| Application | opera | opera_browser | 5.0 | Yes |
| Application | opera | opera_browser | 5.0 | Yes |
| Application | opera | opera_browser | 5.02 | Yes |
| Application | opera | opera_browser | 5.10 | Yes |
| Application | opera | opera_browser | 5.11 | Yes |
| Application | opera | opera_browser | 5.12 | Yes |
| Application | opera | opera_browser | 6.0 | Yes |
| Application | opera | opera_browser | 6.0 | Yes |
| Application | opera | opera_browser | 6.0 | Yes |
| Application | opera | opera_browser | 6.0 | Yes |
| Application | opera | opera_browser | 6.0 | Yes |
| Application | opera | opera_browser | 6.0 | Yes |
| Application | opera | opera_browser | 6.1 | Yes |
| Application | opera | opera_browser | 6.01 | Yes |
| Application | opera | opera_browser | 6.1 | Yes |
| Application | opera | opera_browser | 6.02 | Yes |
| Application | opera | opera_browser | 6.03 | Yes |
| Application | opera | opera_browser | 6.04 | Yes |
| Application | opera | opera_browser | 6.05 | Yes |
| Application | opera | opera_browser | 6.06 | Yes |
| Application | opera | opera_browser | 6.11 | Yes |
| Application | opera | opera_browser | 6.12 | Yes |
| Application | opera | opera_browser | 7.0 | Yes |
| Application | opera | opera_browser | 7.0 | Yes |
| Application | opera | opera_browser | 7.0 | Yes |
| Application | opera | opera_browser | 7.0 | Yes |
| Application | opera | opera_browser | 7.01 | Yes |
| Application | opera | opera_browser | 7.02 | Yes |
| Application | opera | opera_browser | 7.03 | Yes |
| Application | opera | opera_browser | 7.10 | Yes |
| Application | opera | opera_browser | 7.10 | Yes |
| Application | opera | opera_browser | 7.11 | Yes |
| Application | opera | opera_browser | 7.11 | Yes |
| Application | opera | opera_browser | 7.20 | Yes |
| Application | opera | opera_browser | 7.20 | Yes |
| Application | opera | opera_browser | 7.21 | Yes |
| Application | opera | opera_browser | 7.22 | Yes |
| Application | opera | opera_browser | 7.23 | Yes |
| Application | opera | opera_browser | 7.50 | Yes |
| Application | opera | opera_browser | 7.50 | Yes |
| Application | opera | opera_browser | 7.51 | Yes |
| Application | opera | opera_browser | 7.52 | Yes |
| Application | opera | opera_browser | 7.53 | Yes |
| Application | opera | opera_browser | 7.54 | Yes |
| Application | opera | opera_browser | 7.54 | Yes |
| Application | opera | opera_browser | 7.54 | Yes |
| Application | opera | opera_browser | 7.60 | Yes |
| Application | opera | opera_browser | 8.0 | Yes |
| Application | opera | opera_browser | 8.0 | Yes |
| Application | opera | opera_browser | 8.0 | Yes |
| Application | opera | opera_browser | 8.0 | Yes |
| Application | opera | opera_browser | 8.01 | Yes |
| Application | opera | opera_browser | 8.02 | Yes |
| Application | opera | opera_browser | 8.50 | Yes |
| Application | opera | opera_browser | 8.51 | Yes |
| Application | opera | opera_browser | 8.52 | Yes |
| Application | opera | opera_browser | 8.53 | Yes |
| Application | opera | opera_browser | 8.54 | Yes |
| Application | opera | opera_browser | 9.0 | Yes |
| Application | opera | opera_browser | 9.0 | Yes |
| Application | opera | opera_browser | 9.0 | Yes |
| Application | opera | opera_browser | 9.01 | Yes |
| Application | opera | opera_browser | 9.02 | Yes |
| Application | opera | opera_browser | 9.10 | Yes |
| Application | opera | opera_browser | 9.12 | Yes |
| Application | opera | opera_browser | 9.20 | Yes |
| Application | opera | opera_browser | 9.20 | Yes |
| Application | opera | opera_browser | 9.21 | Yes |
| Application | opera | opera_browser | 9.22 | Yes |
| Application | opera | opera_browser | 9.23 | Yes |
| Application | opera | opera_browser | 9.24 | Yes |
| Application | opera | opera_browser | 9.25 | Yes |
| Application | opera | opera_browser | 9.26 | Yes |
| Application | opera | opera_browser | 9.27 | Yes |
| Application | opera | opera_browser | 9.50 | Yes |
| Application | opera | opera_browser | 9.50 | Yes |
| Application | opera | opera_browser | 9.50 | Yes |
| Application | opera | opera_browser | 9.51 | Yes |
| Application | opera | opera_browser | 9.52 | Yes |
| Application | opera | opera_browser | 9.60 | Yes |
| Application | opera | opera_browser | 9.60 | Yes |
| Application | opera | opera_browser | 9.61 | Yes |
| Application | opera | opera_browser | 9.62 | Yes |
| Application | opera | opera_browser | 9.63 | Yes |
| Application | opera | opera_browser | 9.64 | Yes |
| Application | opera | opera_browser | 10.00 | Yes |
| Application | opera | opera_browser | 10.00 | Yes |
| Application | opera | opera_browser | 10.00 | Yes |
| Application | opera | opera_browser | 10.00 | Yes |
| Application | opera | opera_browser | 10.01 | Yes |
| Application | opera | opera_browser | 10.10 | Yes |
| Application | opera | opera_browser | 10.10 | Yes |
| Application | opera | opera_browser | 10.50 | Yes |
| Application | opera | opera_browser | 10.50 | Yes |
| Application | opera | opera_browser | 10.50 | Yes |
| Application | opera | opera_browser | 10.51 | Yes |
| Application | opera | opera_browser | 10.52 | Yes |
| Application | opera | opera_browser | 10.53 | Yes |
| Application | opera | opera_browser | 10.53 | Yes |
| Application | opera | opera_browser | 10.54 | Yes |
| Application | opera | opera_browser | 10.60 | Yes |
| Application | opera | opera_browser | 10.60 | Yes |
| Application | opera | opera_browser | 10.61 | Yes |
| Application | opera | opera_browser | 10.62 | Yes |
| Application | opera | opera_browser | 10.63 | Yes |
| Application | opera | opera_browser | 11.00 | Yes |
| Application | opera | opera_browser | 11.00 | Yes |
| Application | opera | opera_browser | 11.00 | Yes |
| Application | opera | opera_browser | 11.01 | Yes |
| Application | opera | opera_browser | 11.10 | Yes |
| Application | opera | opera_browser | 11.10 | Yes |
| Application | opera | opera_browser | 11.50 | Yes |
| Application | opera | opera_browser | 11.50 | Yes |
| Application | opera | opera_browser | 11.50 | Yes |
| Application | opera | opera_browser | 11.51 | Yes |
| Application | opera | opera_browser | 11.52 | Yes |