Secunia

Some vulnerabilities have been reported in phplist, which can be exploited by malicious users to conduct SQL injection attacks and disclose sensitive information, and by malicious people to conduct cross-site scripting attacks, bypass certain security restrictions, and disclose sensitive information.

1) The problem is that users can access other users' personal details.

Successful exploitation requires knowledge of the email address.

2) An unspecified error in the sign up process can be exploited to sign up without providing a password.

3) Some input passed in the administration interface isn't properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in an administrator's browser session in context of an affected site.

4) Some input passed in the administration interface isn't properly sanitised before being used in a SQL query. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

Successful exploitation requires administrative privileges.

5) Some input passed in the administration interface isn't properly sanitised before being displayed. This can be exploited to disclose the content of arbitrary files via directory traversal attacks.

Successful exploitation requires administrative privileges.

The vulnerabilities have been reported in version 2.10.1. Prior versions may also be affected.

Solution
Update to version 2.10.2.
Further details available in Customer Area

Provided and/or discovered by
1) The vendor credits Michael Stenitzer.
2) The vendor credits Marshall Roch.
3-5) Tobias Klein

Original Advisory
phplist:
http://tincan.co.uk/?lid=1632

Tobias Klein:
http://www.trapkit.de/advisories/TKADV2005-11-001.txt

Deep Links
Links available in Customer Area