Mailman is software to help manage email discussion lists.
A flaw in the true_path function of Mailman was discovered. A remote attacker who is a member of a private mailman list could use a carefully crafted URL and gain access to arbitrary files on the server. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-0202 to this issue.
Note: Mailman installations running on Apache 2.0-based servers are not vulnerable to this issue.
Users of Mailman should update to these erratum packages that contain a patch and are not vulnerable to this issue.