Jsish 2.4.77 2.0477 is affected by: Use After Free. The impact is: denial of service. The component is: function Jsi_ObjFree (jsiObj.c:230). The attack vector is: executing crafted javascript code. The fixed version is: 2.4.78.
https://jsish.org/fossil/jsi/tktview/870f496bb8a707491df8026e2ff78b33a5cf44c1