Multiple SQL injection vulnerabilities in Campaign11.exe in Arial Software Campaign Enterprise before 11.0.551 allow remote attackers to execute arbitrary SQL commands via the (1) SerialNumber field to activate.asp or (2) UID field to User-Edit.asp.

In Arial Campaign Enterprise before 11.0.551, multiple pages are accessible without authentication or authorization.

Arial Campaign Enterprise before 11.0.551 stores passwords in clear text and these may be retrieved.

Arial Campaign Enterprise before 11.0.551 has unauthorized access to the User-Edit.asp page, which allows remote attackers to enumerate users' credentials.

A Security Bypass vulnerability exists in the activate.asp page in Arial Software Campaign Enterprise 11.0.551, which could let a remote malicious user modify the SerialNumber field.