CVE-2009-1309

Mozilla Firefox before 3.0.9, Thunderbird, and SeaMonkey do not properly implement the Same Origin Policy for 1 XMLHttpRequest, involving a mismatch for a document's principal, and 2 XPCNativeWrapper.toString, involving an incorrect proto scope, which allows remote attackers to conduct cross-site...

Same-origin violations in XMLHttpRequest and XPCNativeWrapper.toString — Mozilla

Mozilla security researcher mozbugra4 reported that it is possible to create a document whose URI does not match the document's principal using XMLHttpRequest. This type of mismatch leads to incorrect results in principal-based security checks. An attacker could use this vulnerability to execute...