Online child sexual exploitation and abuse (OCSEA) is a rising global problem affecting children and adolescents worldwide. Despite the escalating prevalence of OCSEA, there is limited research specifically focusing on children and adolescents with disabilities. To bridge this gap, this systematic review was conducted to identify the prevalence, nature and associated risk factors of OCSEA of children and adolescents with disabilities. Following the PRISMA Statement, this systematic review included scientific evidence from 12 academic databases and the gray literature published between 1993 and 2023. A total of 13 studies were extracted, and thematic analysis was conducted to analyze the data. The findings of this systematic review reveal the characteristics such as the gender, age and type of disabilities of OCSEA victims. Perpetrators use diverse techniques, including online grooming, manipulation, and cyber-threats, resulting in consequences such as mental health issues and social isolation of victims. The associated risk factors include lack of parental monitoring, social isolation, and low risk perception. The results of this research provide crucial insights into OCSEA of children and adolescents with disabilities, emphasizing the need for targeted interventions and further exploration in this understudied area.