Multiple SQL injection vulnerabilities in phpCommunityCalendar 4.0.3, and possibly earlier versions, allow remote attackers to execute arbitrary SQL commands via the (1) login field in login.php or (2) LocationID parameter to week.php.

phpCommunityCalendar 4.0.3 allows remote attackers to bypass authentication and gain unauthorized access via a direct request to the admin directory.

Multiple cross-site scripting (XSS) vulnerabilities in phpCommunityCalendar 4.0.3, and possibly earlier versions, allow remote attackers to inject arbitrary web script or HTML via the LocationID parameter to (1) thankyou.php or (2) day.php, font parameter to (3) calDaily.php, (4) calMonthly.php, (5) calMonthlyP.php, (6) calWeekly.php, (7) calWeeklyP.php, (8) calYearly.php, (9) calYearlyP.php, (10) day.php, or (11) week.php, or (12) CeTi, (13) Contact, (14) Description, (15) ShowAddress parameter to event.php, and other attack vectors.

Multiple SQL injection vulnerabilities in phpCommunityCalendar 4.0.3 allow remote attackers to execute arbitrary SQL commands via the (1) CalendarDetailsID parameter in (a) month.php, (b) day.php, and (c) delCalendar.php; (2) ID parameter in (d) event.php; (3) AdminUserID parameter in (e) delAdmin.php; (4) EventLocationID parameter in (f) delAddress.php; and (5) LocationID parameter in (g) delCategory.php.

Multiple cross-site scripting (XSS) vulnerabilities in phpCommunityCalendar 4.0.3 allow remote attackers to inject arbitrary web script or HTML via the (1) LoName parameter in (a) week.php and (b) month.php and (2) AddressLink parameter in (c) event.php.