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XSS Vulnerability in Synkron.web CMS

SUMMARY

"Ever since 1997, it has been Synkron's mission to help companies manage
on their own when setting up a presence on the Internet. To achieve this,
Synkron has developed a so-called 'Web content management' system, which
everyone with a user-level knowledge of IT can learn to use in less than a
single day". A vulnerability in the product allows remote attackers to
cause the server to return malicious HTML/JavaScript to users as if it was
being sent by the server.

DETAILS

Vulnerable systems:

• Synkron.web version 3

Proof of Concept:
First, visit the search page:
http://www.example.net/sw000.asp
Then search for:
">< script>alert('test')</script> You will see a javascript
pop-up.
Finally visit the cached page:
http://www.example.net/sw000.asp?SearchCacheId=xx&#92;
&SearchPageNumberII=1&SearchParaId=y&SearchParaType=zzz

This will show the same JavaScript pop-up as above.

ADDITIONAL INFORMATION

The information has been provided by <mailto:[email protected]> gyrniff.

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