CVE-2022-1529: mozilla firefox Prototype Pollution

Vulnerability summary

CVE-2022-1529 is a high (CVSS 8.8) Prototype Pollution vulnerability in mozilla firefox. EPSS estimates a 17.10% chance of exploitation in the next 30 days, higher than 97% of scored vulnerabilities.

Timeline

1. 22-12-2022
   PublishedVulnerability first disclosed.
2. 16-04-2025
   Last modifiedVulnerability information updated.

Description

An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype pollution and ultimately attacker-controlled JavaScript executing in the privileged parent process. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.

• CWE-1321Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.