chore(deps): update dependency @sveltejs/kit to v2.8.3 [security] - autoclosed

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@sveltejs/kit (source)	2.8.0 -> 2.8.3

GitHub Vulnerability Alerts

CVE-2024-53262

Summary

The static error.html template for errors contains placeholders that are replaced without escaping the content first.

Details

From https://kit.svelte.dev/docs/errors:

error.html is the page that is rendered when everything else fails. It can contain the following placeholders:
%sveltekit.status% — the HTTP status
%sveltekit.error.message% — the error message

This leads to possible injection if an app explicitly creates an error with a message that contains user controlled content that ends up being something like this inside a server handle function:

error(500, '<script>alert("boom")</script>');

Uncaught errors cannot be exploited like this, as they always render the message "Internal error".

Escaping the message string in the function that creates the html output can be done to improve safety for applications that are using custom errors on the server.

PoC

None provided

Impact

Only applications where user provided input is used in the Error message will be vulnerable, so the vast majority of applications will not be vulnerable

CVE-2024-53261

Summary

"Unsanitized input from the request URL flows into end, where it is used to render an HTML page returned to the user. This may result in a Cross-Site Scripting attack (XSS)."

Details

Source of potentially tainted data is in packages/kit/src/exports/vite/dev/index.js, line 437. This potentially tainted data is passed through a number of steps (which I could detail if you'd like) all the way down to line 91 in packages/kit/src/exports/vite/utils.js, which performs an operation that Snyk believes an attacker shouldn't be allowed to manipulate.

Another source of potentially tainted data (according to Snyk) comes from ‎packages/kit/src/exports/vite/utils.js, line 30, col 30 (i.e., the url property of req). This potentially tainted data is passed through a number of steps (which I could detail if you'd like) all the way down line 91 in packages/kit/src/exports/vite/utils.js, which performs an operation that Snyk believes an attacker shouldn't be allowed to manipulate.

PoC

Not provided

Impact

Little to none. The Vite development is not exposed to the network by default. And even if someone were able to trick a developer into executing an XSS against themselves, a development database should not have any sensitive data.

---

Release Notes

sveltejs/kit (@​sveltejs/kit)

v2.8.3

Compare Source

Patch Changes

• fix: ensure error messages are escaped (#​13050)

• fix: escape values included in dev 404 page (#​13039)

v2.8.2

Compare Source

Patch Changes

• fix: prevent duplicate fetch request when using Request with load function's fetch (#​13023)

• fix: do not override default cookie decoder to allow users to override the cookie library version (#​13037)

v2.8.1

Compare Source

Patch Changes

• fix: only add nonce to script-src-elem, style-src-attr and style-src-elem CSP directives when unsafe-inline is not present (#​11613)

• fix: support HTTP/2 in dev and production. Revert the changes from #​12907 to downgrade HTTP/2 to TLS as now being unnecessary (#​12989)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.87%. Comparing base (46236d2) to head (d51e083).
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #43   +/-   ##
=======================================
  Coverage   87.87%   87.87%           
=======================================
  Files          13       13           
  Lines         404      404           
  Branches       51       51           
=======================================
  Hits          355      355           
  Misses         49       49