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PunBB Multiple Remote Input Validation Vulnerabilities

Multiple remote input validation vulnerabilities affect PunBB. These issues are due to a failure of the application to sanitize user-supplied input prior to using it to carry out critical functions.

The first issue is an SQL injection issue in the 'register.php' script. The second issue is an SQL injection issue in the 'moderate.php' script. A third SQL injection issue exists in the 'profile.php' script. Finally an access validation issue affects the 'profile.php' script.

An attacker may leverage these issues to have arbitrary SQL queries executed against the database; this may facilitate data corruption or manipulation. Furthermore one of these issues may be leveraged to trigger a denial of service condition against current user by setting their passwords to a NULL value.