Google V8, as used in Google Chrome before 28.0.1500.95, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that leverage "type confusion."

The Update method in src/node_http_parser.cc in Node.js before 0.6.17 and 0.7 before 0.7.8 does not properly check the length of a string, which allows remote attackers to obtain sensitive information (request header contents) and possibly spoof HTTP headers via a zero length string.

Unspecified vulnerability in Prototype JavaScript framework (prototypejs) before 1.6.0.2 allows attackers to make "cross-site ajax requests" via unknown vectors.

The Prototype (prototypejs) framework before 1.5.1 RC3 exchanges data using JavaScript Object Notation (JSON) without an associated protection scheme, which allows remote attackers to obtain the data via a web page that retrieves the data through a URL in the SRC attribute of a SCRIPT element and captures the data using other JavaScript code, aka "JavaScript Hijacking."