Secunia

NBBN has discovered some vulnerabilities in the Sniplets plugin for WordPress, which can be exploited by malicious people to conduct cross-site scripting attacks, disclose sensitive information, or compromise a vulnerable system.

1) Input passed to the "libpath" parameter in modules/syntax_highlight.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local or external resources.

Successful exploitation of this vulnerability requires that "register_globals" is enabled.

2) Input passed to the "text" parameter in modules/execute.php is not properly sanitised before being used in a call to "eval()". This can be exploited to inject and execute arbitrary PHP code via a specially crafted parameter value.

Successful exploitation of this vulnerability requires that "register_globals" is enabled.

3) Input passed to the "page" parameter in view/admin/pager.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.

4) Input passed to the "text" parameter in view/sniplets/warning.php, view/sniplets/notice.php, view/sniplets/inset.php, and modules/execute.php and "url" in view/admin/submenu.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.

Successful exploitation of this vulnerability requires that "register_globals" is enabled.

The vulnerabilities are confirmed in version 1.2.2. Other versions may also be affected.

Solution
Edit the source code to ensure that input is properly verified and sanitised.

Provided and/or discovered by
NBBN

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