Secunia Research has discovered two vulnerabilities in e107, which can be exploited by malicious users to conduct script insertion attacks or to compromise a vulnerable system.
1) An error exists in the handling of file uploads for avatar or photograph images. This can be exploited by to upload and execute arbitrary PHP code via a specially crafted image file with an ".php.filetypesphp" extension.
Successful exploitation of this vulnerability requires that "Public Uploads" are disabled (default), but uploads for avatar or photograph images for users are enabled, and a certain server configuration (e.g. an Apache server with the "mod_mime" module installed).
2) Input passed via the "content_heading" parameter to e107_plugins/content/content_manager.php while creating new content is not properly sanitised before being displayed to the user. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious data is being viewed.
Successful exploitation of this vulnerability requires authentication and that the Content Management plugin is enabled.
The vulnerabilities are confirmed in version 0.7.19. Prior versions may also be affected.
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Subject: e107 Two Vulnerabilities
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