Cross-site scripting (XSS) vulnerability in the "Customize Statistics Page" (admin/statistics/ConfigureStatistics) in the MDS Connection Service in Research in Motion (RIM) BlackBerry Enterprise Server (BES) before 4.1.6 MR5 allows remote attackers to inject arbitrary web script or HTML via the (1) customDate, (2) interval, (3) lastCustomInterval, (4) lastIntervalLength, (5) nextCustomInterval, (6) nextIntervalLength, (7) action, (8) delIntervalIndex, (9) addStatIndex, (10) delStatIndex, and (11) referenceTime parameters.