The WebPageSerializerImpl::openTagToString function in WebKit/Source/web/WebPageSerializerImpl.cpp in the page serializer in Google Chrome before 47.0.2526.80 does not properly use HTML entities, which might allow remote attackers to inject arbitrary web script or HTML via a crafted document, as demonstrated by a double-quote character inside a single-quoted string.
Improper Input Validation The product receives input or data, but it does
not validate or incorrectly validates that the input has the
properties that are required to process the data safely and
correctly.