Multiple cross-site scripting (XSS) vulnerabilities in GNU Mailman before 2.1.14rc1 allow remote authenticated users to inject arbitrary web script or HTML via vectors involving (1) the list information field or (2) the list description field.

CRLF injection vulnerability in Utils.py in Mailman before 2.1.9rc1 allows remote attackers to spoof messages in the error log and possibly trick the administrator into visiting malicious URLs via CRLF sequences in the URI.

Cross-site scripting (XSS) vulnerability in the private archive script (private.py) in GNU Mailman 2.1.7 allows remote attackers to inject arbitrary web script or HTML via the action argument.

Pipermail in Mailman stores private mail messages with predictable filenames in a world-executable directory, which allows local users to read private mailing list archives.