OXID eShop Enterprise Edition 6.5.0 – 6.5.2 before 6.5.3 allows uploading files with modified headers in the administration area

OXID eShop Enterprise Edition 6.5.0 – 6.5.2 before 6.5.3 allows uploading files with modified headers in the administration area. An attacker can upload a file with a modified header to create a HTTP Response Splitting attack.