FreeScout is a free, self-hosted help desk and shared mailbox. Versions of FreeScout prior to 1.8.139 contain a Prototype Pollution vulnerability in the `/public/js/main.js` source file. The Prototype Pollution arises because the `getQueryParam` Function recursively merges an object containing user-controllable properties into an existing object (For URL Query Parameters Parsing), without first sanitizing the keys. This can allow an attacker to inject a property with a key `__proto__`, along with arbitrarily nested properties. The merge operation assigns the nested properties to the `params` object's prototype instead of the target object itself. As a result, the attacker can pollute the prototype with properties containing harmful values, which are then inherited by user-defined objects and subsequently used by the application dangerously. The vulnerability lets an attacker control properties of objects that would otherwise be inaccessible. If the application subsequently handles an attacker-controlled property in an unsafe way, this can potentially be chained with other vulnerabilities like DOM-based XSS, Open Redirection, Cookie Manipulation, Link Manipulation, HTML Injection, etc. Version 1.8.139 contains a patch for the issue.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-05-13T15:50:34.498Z

Updated: 2024-08-02T02:59:21.707Z

Reserved: 2024-05-07T13:53:00.131Z

Link: CVE-2024-34698

cve-icon Vulnrichment

Updated: 2024-08-02T02:59:21.707Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-14T15:39:27.840

Modified: 2024-05-14T16:12:23.490

Link: CVE-2024-34698

cve-icon Redhat

No data.