OTRS is a platform independent Web-based help desk system that supports service organization of any kind (e.g. IT service, customer and technical product service, complaint management, public services, etc.) to increase their efficiency. It increases transparency as well as service quality and lowers your total cost of ownership. It has been certified ITIL V3 compatible by PinkVERIFY for incident, problem, change, service asset and configuration, request fulfillment, and knowledge management. Other ITIL processes like service catalog and service level management are supported as well.Changes: This release addresses a security advisory. All production environments should upgrade. Affected by this vulnerability are all releases of OTRS 2.1.x up to and including 2.4.6. This vulnerability is fixed in OTRS 2.1.9, 2.2.9, 2.3.5, and 2.4.7.