Bug 19051 - XSS Flaws in - Batch item modification page

Bug 19051 - XSS Flaws in - Batch item modification page

1. Hit /cgi-bin/koha/tools/batchMod.pl
2. Enter <IFRAME SRC="javascript:alert('XSS');"></IFRAME> in the Barcode list (one barcode per line) text area.
3. Notice the iframe is executed.
4. Apply patch.
5. Reload page, and enter iframe again on Barcode list (one barcode per line) text area.
6. Notice it is no longer executed.
7. Fixes for both barcode and itemnumber.

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit 0726c79361a22051b847e9fe8668ab6faf81479a)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>