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TITLE:
Swiki Cross-Site Scripting and Script Insertion Vulnerabilities

SECUNIA ADVISORY ID:
SA34114

VERIFY ADVISORY:
http://secunia.com/advisories/34114/

DESCRIPTION:
Some vulnerabilities have been discovered in Swiki, which can be
exploited by malicious people to conduct cross-site scripting and
script insertion attacks.

1) Input appended to the URL after "[installation path]/" is not
properly sanitised before being returned to the user. This can be
exploited to execute arbitrary HTML and script code in a user's
browser session in the context of an affected site.

2) Input passed to the "append" parameter in refs/1.append is not
properly sanitised before being used. This can be exploited to insert
arbitrary HTML and script code, which will be executed in a user's
browser session in the context of an affected site when the malicious
post is viewed.

The vulnerabilities are confirmed in version 1.5. Other versions may
also be affected.

SOLUTION:
Filter malicious characters and character sequences in a web proxy.

PROVIDED AND/OR DISCOVERED BY:
Brad Antoniewicz

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