By utilizing 3D CSS in conjunction with Javascript, content could have been rendered outside the webpage's viewport, resulting in a spoofing attack that could have been used for phishing or other attacks on a user. This vulnerability affects Firefox < 88.
Al utilizar CSS 3D en conjunción con Javascript, el contenido podría haber sido renderizado fuera de la ventana gráfica de la página web, dando lugar a un ataque de suplantación de identidad que podría haber sido utilizado para el phishing u otros ataques a un usuario. Esta vulnerabilidad afecta a Firefox versiones anteriores a 88
Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, spoof the browser UI, bypass security restrictions, trick the user into disclosing confidential information, or execute arbitrary code. Various other issues were also addressed.