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Simple PHP Blog Cross-Site Scripting Vulnerabilities
Secunia Advisory: SA17404
Release Date: 2005-11-02
Last Update: 2007-09-26
Popularity: 7,065 views

Critical:
Less critical
Impact: Cross Site Scripting
Where: From remote
Solution Status: Vendor Patch

Software:Simple PHP Blog 0.x

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Description:
Nenad Jovanovic has discovered some vulnerabilities in Simple PHP Blog, which can be exploited by malicious people to conduct cross-site scripting attacks.

Input passed to the "entry" parameter in "preview_cgi.php" and "preview_static_cgi.php", the "blog_subject" and "blog_text" parameters in "preview_cgi.php", the "blog_subject", "blog_text", and "file_name" parameters in "preview_static_cgi.php", and the "scheme_name" and "bg_color" parameters in "colors_cgi.php" isn't 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.

The vulnerabilities have been confirmed in version 0.4.5. Other versions may also be affected.

Solution:
Update to version 0.5.1.

Provided and/or discovered by:
Nenad Jovanovic, Secure Systems Lab, Technical University of Vienna

Changelog:
2007-09-26: Updated "Solution" section.

Original Advisory:
http://www.seclab.tuwien.ac.at/advisories/TUVSA-0511-001.txt


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