CDA.xsl in HL7 C-CDA 1.1 and earlier does not anticipate the possibility of invalid C-CDA documents with crafted XML attributes, which allo…

CDA.xsl in HL7 C-CDA 1.1 and earlier does not anticipate the possibility of invalid C-CDA documents with crafted XML attributes, which allows remote attackers to conduct XSS attacks via a document containing a table that is improperly handled during unrestricted xsl:copy operations.