Bug 19112 - Stored XSS in basketheader.pl page

Bug 19112 - Stored XSS in basketheader.pl page

To Test

1. Hit the page /cgi-bin/koha/acqui/basketheader.pl?booksellerid=1&op=add_form
2. Add a text in the field Basket name, Internal note, Vendor note that contains java script
3. Save the page
4. Notice js is execute
5. Apply patch, reload, js is escaped.

Fixed XSS on pages basket.pl/basketheader.pl/bookseller.pl

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>