In this study a questionnaire has been developed to measure cyberbullying victimization, the CBQ-V, as a complement of the Cyberbullying Questionnaire (CBQ; Calvete, Orue, Estévez, Villardón, & Padilla, 2009). The study assessed the prevalence of cyberbullying victims, gender differences, and the impact of CB on self-esteem, depression, maltreatment cognitions and exposure to violence. 1431 adolescents aged between 13 and 17 participated in the study. The results indicated that the CBQ-V has suitable psychometric properties. 30.1% of the adolescents declared that they had suffered some kind of cyberaggression. The prevalence was higher among girls than among boys. 22.8% of the participants were both victims and bullies, thereby suggesting an overlap between aggression and victimization. The victims show lower self-esteem, and more depressive symptoms, maltreatment cognitions and levels of exposure to violence than those adolescents who have not suffered any cyberaggression.