The GenerateFunction function in bindings/scripts/code_generator_v8.pm in Blink, as used in Google Chrome before 33.0.1750.149, does not implement a certain cross-origin restriction for the EventTarget::dispatchEvent function, which allows remote attackers to conduct Universal XSS (UXSS) attacks via vectors involving events.
Exploitability
AV:NAC:MAu:NImpact
C:NI:PA:N4.3/AV:N/AC:M/Au:N/C:N/I:P/A:N