A Prototype Pollution vulnerability was found in jquery. Untrusted JSON passed to the extend function could lead to modifying objects up the prototype chain, including the global Object. A crafted JSON object passed to a vulnerable method could lead to denial of service or data injection, with various consequences.

AngularJS could allow a remote attacker to bypass security restrictions, caused by a prototype pollution flaw in the merge function. By sending a specially-crafted request using a constructor payload, a remote attacker could exploit this vulnerability to add or modify properties of Object.prototype.