Multiple security issues have been discovered in PHP Advanced Transfer Manager, which can be exploited by malicious users to compromise a vulnerable system and by malicious people to conduct script insertion attacks and disclose sensitive information.
1) The problem is that HTML documents are allowed to be uploaded to a location inside the web root. This can be exploited to inject arbitrary HTML and script code, which will be executed in a user's browser session in context of an affected site when the malicious HTML document is viewed.
2) The problem is that user credentials are stored insecurely in the "users" directory inside the web root. This can be exploited to disclose the administrator's encrypted password.
3) The security issue is caused due to the index.php script improperly validating uploaded files. This can be exploited to execute arbitrary PHP code by uploading a malicious PHP script with certain extensions e.g. "phtml" extension.
The security issues have been confirmed in version 1.30 and 1.30b. Other versions may also be affected.
Solution: Edit the source code to ensure that input is properly verified.
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Subject: PHP Advanced Transfer Manager Multiple Vulnerabilities
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