Bump dompurify from 1.0.3 to 2.0.6

[dependabot-preview]

Bumps dompurify from 1.0.3 to 2.0.6.

Release notes

Sourced from dompurify's releases.

DOMPurify 2.0.6

• Enhanced the checks for SVG-/MathML-based mXSS
• Removed several obtrusive checks and guards that are not needed any longer
• Added better test coverage
• Added better handling of situations where element removal causes mXSS
• Added better handling of content type switches causing mXSS

DOMPurify 2.0.5

• Fixed a logical issue causing overly aggressive SVG removal spotted by @​thorn0

DOMPurify 2.0.4

Another mXSS variation was spotted by @​masatokinugawa and got addressed and fixed in this release.

The fixes were reviewed and no new bypasses could be spotted at the moment.
Thanks, @​masatokinugawa 🙇‍♂️ 🙇‍♀️!

The sanitization logic for this kind of mXSS was changed to be less aggressive and still be able to spot all recent mXSS variations we know about right now - while also avoiding risky string matching.

Prayers and thoughts that this was the final variation. But better be on the lookout for more releases soon.

DOMPurify 2.0.3

• Fixed another mXSS variation affecting Chrome, Safari and Edge relating to HTML templates
• Fixed a bug in the config parser leading to unexpected results

Credits for the bypass again go to Michał Bentkowski (@​securityMB) of Securitum who spotted the bug in Chrome, turned it into another DOMPurify bypass, reported and helped verifying the fix 🙇‍♂️ 🙇‍♀️

DOMPurify 2.0.2

Following the release of DOMPurify 2.0.1, a more thorough internal audit against Blink-based mXSS bugs was conducted. Several mXSS variations, spotted by @​masatokinugawa were addressed and fixed. The fixes were reviewed and so far no new bypasses could be spotted.

This release manages to find what is believed to be a more holistic way to prevent mXSS bugs, specifically coming from HTML attributes and tags nested inside SVG and MathML.

Further, this release also addresses a DoS problem caused by sanitization of HTML tables when configured with potentially conflicting configuration settings.

DOMPurify 2.0.1

• Fixed a bypass affecting latest Chrome, caused by a newly discovered Chrome mXSS vulnerability
• Added tests to cover implemented fixes

Credits go to Michał Bentkowski (@​SecurityMB) of Securitum who spotted the bug in Chrome, turned it into a DOMPurify bypass, reported and helped verifying the fix. 🙇

DOMPurify 2.0.0

Note: This release makes sure that, by default only string objects are returned (if not specified otherwise). This change relates to a surprising behavior in Chrome 77 - having to do with Trusted Types.

• Changed the default behavior for Trusted Types (See #361)
• Added a new config flag to manually enable Trusted Types support
• Added support for more attributes
• Fixed a minor CSP warning

DOMPurify 1.0.11

• Fixed a minor problem with persistent config flags

... (truncated)

Commits

• 7acc4c3 Preparing 2.0.6 release
• 899c7d0 Fixed the tests for some older Edge versions
• 66f0d0b Fixed the tests
• 2a8cdff Enabled encoding attribute for MathML
• 2fed5ae Added more tests and extended the FORBID_CONTENT tags list
• 9ee554a Fixed the tests for FF56 who appears to have a sane XML parser
• 1b754b3 Modified the check for "breaker tags" slightly, removed cruft
• 63f0812 Attempting to fix the SVG/Math mXSS bug differently
• 64fe2f0 Finalizing 2.0.5 release
• 55acf1e Preparing 2.0.5 release
• Additional commits viewable in compare view

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Superseded by #60.