The forum module in NullLogic Groupware 1.2.7 allows remote authenticated users to cause a denial of service (application crash) by specifying (1) an empty string or (2) a non-numeric string when selecting a forum, related to the fmessagelist function.

Multiple stack-based buffer overflows in the pgsqlQuery function in NullLogic Groupware 1.2.7, when PostgreSQL is used, might allow remote attackers to execute arbitrary code via input to the (1) POP3, (2) SMTP, or (3) web component that triggers a long SQL query.