[Security] Bump jquery from 3.4.1 to 3.5.1 in /backend

Sourced from The GitHub Security Advisory Database.

Potential XSS vulnerability in jQuery

Impact

Passing HTML from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code.

Patches

This problem is patched in jQuery 3.5.0.

Workarounds

To workaround the issue without upgrading, adding the following to your code:

jQuery.htmlPrefilter = function( html ) {
	return html;
};

You need to use at least jQuery 1.12/2.2 or newer to be able to apply this workaround.

References

https://blog.jquery.com/2020/04/10/jquery-3-5-0-released/ https://jquery.com/upgrade-guide/3.5/

Affected versions: >= 1.2 < 3.5.0

Sourced from The GitHub Security Advisory Database.

Potential XSS vulnerability in jQuery In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code.

This problem is patched in jQuery 3.5.0.

Affected versions: >= 1.0.3 < 3.5.0

Sourced from jquery's releases.

jQuery 3.5.0 Released!

See the blog post: https://blog.jquery.com/2020/04/10/jquery-3-5-0-released/ and the upgrade guide: https://jquery.com/upgrade-guide/3.5/

NOTE: Despite being a minor release, this update includes a breaking change that we had to make to fix a security issue ( CVE-2020-11022). Please follow the blog post & the upgrade guide for more details.

• e1cffde 3.5.1
• 7d2ce69 Release: update AUTHORS.txt
• ea2d0d5 Tests: Workaround failures in recent XSS tests in iOS 8 - 12
• ea3766c Docs: Fix typos
• 58a8e87 Tests: Add tests for recently fixed manipulation XSS issues
• c1c0598 Tests: Cleanup window & document handlers in a new event test
• 46ba70c Tests: Fix flakiness in the "jQuery.ajax() - JSONP - Same Domain" test
• f7fed7e Docs: Update the link to the jsdom repository
• 205dd13 Build: Test on Node.js 14, stop testing on Node.js 8 & 13
• b21d671 Build: Enable reportUnusedDisableDirectives in ESLint
• Additional commits viewable in compare view

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