Alexandr Polyakov and Stas Svistunovich have discovered some vulnerabilities in Jinzora, which can be exploited by malicious people to conduct cross-site scripting and script insertion attacks.

1) Input passed to the "frontend", "set_frontend", "jz_path", "theme", and "set_theme" parameters in index.php, to the "frontend", "theme", and "language" parameters in ajax_request.php, to the "jz_path" parameter in slim.php, to the "frontend", "theme", and "jz_path" parameters in popup.php, and via the URL to index.php and slim.php, 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 context of an affected site.

2) Input passed via the playlist name when creating a playlist in popup.php, and via the news text when updating the site news in popup.php, is not properly sanitised before being stored. This can be exploited to insert arbitrary HTML and script code, which is executed in a user's browser session in context of an affected site when the malicious data is viewed.

The vulnerabilities are confirmed in version 2.7.5. Other versions may also be affected.

Solution
Filter malicious characters and character sequences using a proxy.

Provided and/or discovered by
Alexandr Polyakov and Stas Svistunovich, Digital Security Research Group

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