CVE-2015-7184: Improper Access Control

The fetch API implementation in Mozilla Firefox before 41.0.2 does not restrict access to the HTTP response body in certain situations where user credentials are supplied but the CORS cross-origin request algorithm is improperly followed, which allows remote attackers to bypass the Same Origin...

USN-2768-1: Firefox vulnerability

Abdulrahman Alqabandi and Ben Kelly discovered that the fetch API did not correctly implement the Cross Origin Resource Sharing CORS specification. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information from oth...

USN-2768-1 firefox vulnerability

Abdulrahman Alqabandi and Ben Kelly discovered that the fetch API did not correctly implement the Cross Origin Resource Sharing CORS specification. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information from oth...

firefox: cross-origin restriction bypass

Security researcher Abdulrahman Alqabandi reported that the fetch API did not correctly implement the Cross-Origin Resource Sharing CORS specification, allowing a malicious page to access private data from other origins. Mozilla developer Ben Kelly independently reported the same issue...

Firefox < 41.0.2 'fetch' API Cross-Origin Bypass

The version of Firefox installed on the remote Windows host is prior to 41.0.2. It is, therefore, affected by a cross-origin restriction bypass vulnerability in the fetch API due to an incorrect implementation of the Cross-Origin Resource Sharing CORS specification. A remote attacker can exploit...

Firefox < 41.0.2 'fetch' API Cross-Origin Bypass (Mac OS X)

The version of Firefox installed on the remote Mac OS X host is prior to 41.0.2. It is, therefore, affected by a cross-origin restriction bypass vulnerability in the fetch API due to an incorrect implementation of the Cross-Origin Resource Sharing CORS specification. A remote attacker can exploit...

PT-2015-7474

Name of the Vulnerable Software and Affected Versions Mozilla Firefox versions prior to 41.0.2 Description The issue concerns the implementation of the fetch API in Mozilla Firefox, where access to the HTTP response body is not properly restricted in certain situations. This occurs when user...

Cross-origin restriction bypass using Fetch — Mozilla

Security researcher Abdulrahman Alqabandi reported that the fetch API did not correctly implement the Cross-Origin Resource Sharing CORS specification, allowing a malicious page to access private data from other origins. Mozilla developer Ben Kelly independently reported the same issue...

That's so fetch!

There's been some confusion around the new fetch API recently. Let's clear things up. The first thing you'll notice about fetch is it's a massive improvement on XMLHttpRequest in terms of API design. Here's how to get some JSON using XHR: var xhr = new XMLHttpRequest; xhr.open'GET', url;...

What happens when you read a response?

There's a bit of disagreement over the behaviour of requests and responses in the fetch API, curious to know what you think… Setting the scene The new fetch API gives the web proper Request and Response primitives. fetch'/whatever'.thenfunctionresponse return response.body.asJSON; .thenfunctionda...