🚨 [security] Update sanitize-html 2.7.0 → 2.12.1 (minor)

🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ sanitize-html (2.7.0 → 2.12.1) · Repo · Changelog

Security Advisories 🚨

🚨 sanitize-html Information Exposure vulnerability

Versions of the package sanitize-html before 2.12.1 are vulnerable to Information Exposure when used on the backend and with the style attribute allowed, allowing enumeration of files in the system (including project dependencies). An attacker could exploit this vulnerability to gather details about the file system structure and dependencies of the targeted server.

Release Notes

2.12.1 (from changelog)

Do not parse sourcemaps in post-css. This fixes a vulnerability in which information about the existence or non-existence of files on a server could be disclosed via properly crafted HTML input when the style attribute is allowed by the configuration. Thanks to the Snyk Security team for the disclosure and to Dylan Armstrong for the fix.

2.12.0 (from changelog)

Introduced the allowedEmptyAttributes option, enabling explicit specification of empty string values for select attributes, with the default attribute set to alt. Thanks to Na for the contribution.

Clarified the use of SVGs with a new test and changes to documentation. Thanks to Gauav Kumar for the contribution.

Do not process source maps when processing style tags with PostCSS.

2.11.0 (from changelog)

Fix to allow false in allowedClasses attributes. Thanks to Kevin Jiang for this fix!

Upgrade mocha version

Apply small linter fixes in tests

Add .idea temp files to .gitignore

Thanks to Vitalii Shpital for the updates!

Show parseStyleAttributes warning in browser only. Thanks to mog422 for this update!

Remove empty non-boolean attributes via an exhaustive, configurable list of known non-boolean attributes. Thanks to Dylan Armstrong for this update!

2.10.0 (from changelog)

Fix auto-adding escaped closing tags. In other words, do not add implied closing tags to disallowed tags when disallowedTagMode is set to any variant of escape -- just escape the disallowed tags that are present. This fixes issue #464. Thanks to Daniel Liebner

Add tagAllowed() helper function which takes a tag name and checks it against options.allowedTags and returns true if the tag is allowed and false if it is not.

2.9.0 (from changelog)

Add option parseStyleAttributes to skip style parsing. This fixes issue #547. Thanks to Bert Verhelst.

2.8.1 (from changelog)

If the argument is a number, convert it to a string, for backwards compatibility. Thanks to Alexander Schranz.

2.8.0 (from changelog)

Upgrades htmlparser2 to new major version ^8.0.0. Thanks to Kedar Chandrayan for this contribution.

2.7.3 (from changelog)

If allowedTags is falsy but not exactly false, then do not assume that all tags are allowed. Rather, allow no tags in this case, to be on the safe side. This matches the existing documentation and fixes issue #176. Thanks to Kedar Chandrayan for the fix.

2.7.2 (from changelog)

Closing tags must agree with opening tags. This fixes issue #549, in which closing tags not associated with any permitted opening tag could be passed through. No known exploit exists, but it's better not to permit this. Thanks to Kedar Chandrayan for the report and the fix.

2.7.1 (from changelog)

Protocol-relative URLs are properly supported for script tags. Thanks to paweljq.

A denial-of-service vulnerability has been fixed by replacing global regular expression replacement logic for comment removal with a new implementation. Thanks to Nariyoshi Chida of NTT Security Japan for pointing out the issue.

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

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