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fine-uploader@5.4.0 vulnerabilities

Multiple file upload plugin with progress-bar, drag-and-drop, direct-to-S3 & Azure uploading, client-side image scaling, preview generation, form support, chunking, auto-resume, and tons of other features.

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Direct Vulnerabilities

Known vulnerabilities in the fine-uploader package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • M
Prototype Pollution

fine-uploader is a npm package for upload.

Note: This project is no longer maintained and the the package should be considered deprecated.

Affected versions of this package are vulnerable to Prototype Pollution. Given a value such as __proto__, this value is used by the extend function without any prior validation. __proto__ will modify the properties of all existing properties and new properties resulting in pollution of an object's prototype.

PoC

//https://docs.fineuploader.com/branch/master/api/qq.html#qq.extend
var payload = JSON.parse('{"__proto__": {"a": "polluted"}}');
var new = qq.extend({}, payload);
console.log({}.a);

How to fix Prototype Pollution?

There is no fixed version for fine-uploader.

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