Some vulnerabilities have been discovered in 4images, which can be exploited by malicious people to conduct cross-site scripting and request forgery attacks.
1) Input appended to the URL after e.g. admin/plugins/migrate_keywords.php or admin/plugins/clear_cache.php is not properly sanitised in the "show_form_header()" function in admin/admin_functions.php 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) The application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to e.g. add an arbitrary group or add an administrative user by tricking a logged in administrative user into visiting a malicious web site.
The vulnerabilities are confirmed in version 1.7.8. Other versions may also be affected.
Solution: Update to version 1.7.9.
Provided and/or discovered by: 1) Secunia Research
2) Russ McRee via Secunia
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Subject: 4images Cross-Site Scripting and Request Forgery Vulnerabilities
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