Significant development in information technology has changed the existing markets and transformed them from physical markets into electronic markets (E-commerce). Along with the E-commerce evolution, enterprises have to discover a superior approach for implementing E-commerce and maintaining its security. Security issues are critical for E-commerce to be successfully implemented. This paper will conduct a systematic literature review to identify the security issues of E-commerce system. Outcome of this paper will give a significant contribution for E-commerce security researchers to develop a better security framework.