[Security] Bump handlebars from 4.0.6 to 4.7.6

[dependabot-preview]

Bumps handlebars from 4.0.6 to 4.7.6. This update includes security fixes.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Prototype Pollution in handlebars Versions of handlebars prior to 3.0.8 or 4.5.3 are vulnerable to prototype pollution. It is possible to add or modify properties to the Object prototype through a malicious template. This may allow attackers to crash the application or execute Arbitrary Code in specific conditions.

Recommendation

Upgrade to version 3.0.8, 4.5.3 or later.

Affected versions: >= 4.0.0 < 4.5.3

Sourced from The GitHub Security Advisory Database.

Arbitrary Code Execution in handlebars Versions of handlebars prior to 3.0.8 or 4.5.2 are vulnerable to Arbitrary Code Execution. The package's lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript in the system. It can be used to run arbitrary code in a server processing Handlebars templates or on a victim's browser (effectively serving as Cross-Site Scripting).

The following template can be used to demonstrate the vulnerability:

	{{#with split as |a|}}
		{{pop (push "alert('Vulnerable Handlebars JS');")}}
		{{#with (concat (lookup join (slice 0 1)))}}
			{{#each (slice 2 3)}}
				{{#with (apply 0 a)}}
					{{.}}
				{{/with}}
			{{/each}}
		{{/with}}
	{{/with}}
{{/with}}```
Recommendation
Upgrade to version 3.0.8, 4.5.2 or later.
Affected versions: >= 4.0.0 < 4.5.2

Sourced from The GitHub Security Advisory Database.

Denial of Service in handlebars Affected versions of handlebars are vulnerable to Denial of Service. The package's parser may be forced into an endless loop while processing specially-crafted templates. This may allow attackers to exhaust system resources leading to Denial of Service.

Recommendation

Upgrade to version 4.4.5 or later.

Affected versions: >= 4.0.0 < 4.4.5

Sourced from The GitHub Security Advisory Database.

Prototype Pollution in handlebars Versions of handlebars prior to 4.0.14 are vulnerable to Prototype Pollution. Templates may alter an Objects' prototype, thus allowing an attacker to execute arbitrary code on the server.

Recommendation

For handlebars 4.1.x upgrade to 4.1.2 or later. For handlebars 4.0.x upgrade to 4.0.14 or later.

Affected versions: >= 4.0.0 < 4.0.14

Sourced from The Node Security Working Group.

Denial of Service Crash Node.js process from handlebars using a small and simple source

Affected versions: <4.6.0

Sourced from The GitHub Security Advisory Database.

High severity vulnerability that affects handlebars Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Object's proto and defineGetter properties, which may allow an attacker to execute arbitrary code through crafted payloads.

Affected versions: < 4.3.0

Changelog

Sourced from handlebars's changelog.

v4.7.6 - April 3rd, 2020

Chore/Housekeeping:

• #1672 - Switch cmd parser to latest minimist (@dougwilson

Compatibility notes:

• Restored Node.js compatibility

Commits

v4.7.5 - April 2nd, 2020

Chore/Housekeeping:

• Node.js version support has been changed to v6+ Reverted in 4.7.6

Compatibility notes:

• Node.js < v6 is no longer supported Reverted in 4.7.6

Commits

v4.7.4 - April 1st, 2020

Chore/Housekeeping:

• #1666 - Replaced minimist with yargs for handlebars CLI (@aorinevo, @AviVahl & @fabb)

Compatibility notes:

• No incompatibilities are to be expected

Commits

v4.7.3 - February 5th, 2020

Chore/Housekeeping:

• #1644 - Download links to aws broken on handlebarsjs.com - access denied (@Tea56)
• Fix spelling and punctuation in changelog - d78cc73

Bugfixes:

• Add Type Definition for Handlebars.VERSION, Fixes #1647 - 4de51fe
• Include Type Definition for runtime.js in Package - a32d05f

Compatibility notes:

Commits

• e6ad93e v4.7.6
• 2bf4fc6 Update release notes
• b64202b Update release-notes.md
• c2f1e62 Switch cmd parser to latest minimist
• 08e9a11 Revert "chore: set Node.js compatibility to v6+"
• 1fd2ede v4.7.5
• 3c9c2f5 Update release notes
• 16487a0 chore: downgrade yargs to v14
• 309d2b4 chore: set Node.js compatibility to v6+
• 645ac73 test: fix integration tests
• Additional commits viewable in compare view

Maintainer changes

This version was pushed to npm by erisds, a new releaser for handlebars since your current version.

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[dependabot-preview]

Superseded by #47.