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Update dependency svelte to v4.2.19 [SECURITY] #123

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@renovate renovate bot commented Aug 30, 2024

This PR contains the following updates:

Package Change Age Adoption Passing Confidence
svelte (source) 4.1.1 -> 4.2.19 age adoption passing confidence

GitHub Vulnerability Alerts

CVE-2024-45047

Summary

A potential XSS vulnerability exists in Svelte for versions prior to 4.2.19.

Details

Svelte improperly escapes HTML on server-side rendering. It converts strings according to the following rules:

  • If the string is an attribute value:
    • " -> "
    • & -> &
    • Other characters -> No conversion
  • Otherwise:
    • < -> &lt;
    • & -> &amp;
    • Other characters -> No conversion

The assumption is that attributes will always stay as such, but in some situation the final DOM tree rendered on browsers is different from what Svelte expects on server-side rendering. This may be leveraged to perform XSS attacks. More specifically, this can occur when injecting malicious content into an attribute within a <noscript> tag.

PoC

A vulnerable page (+page.svelte):

<script>
import { page } from "$app/stores"

// user input
let href = $page.url.searchParams.get("href") ?? "https://example.com";
</script>

<noscript>
  <a href={href}>test</a>
</noscript>

If a user accesses the following URL,

http://localhost:4173/?href=</noscript><script>alert(123)</script>

then, alert(123) will be executed.

Impact

XSS, when using an attribute within a noscript tag


Release Notes

sveltejs/svelte (svelte)

v4.2.19

Compare Source

Patch Changes
  • fix: ensure typings for <svelte:options> are picked up (#​12902)

  • fix: escape < in attribute strings (#​12989)

v4.2.18

Compare Source

Patch Changes

v4.2.17

Compare Source

Patch Changes
  • fix: correctly handle falsy values of style directives in SSR mode (#​11584)

v4.2.16

Compare Source

Patch Changes
  • fix: check if svelte component exists on custom element destroy (#​11489)

v4.2.15

Compare Source

Patch Changes
  • support attribute selector inside :global() (#​11135)

v4.2.14

Compare Source

Patch Changes
  • fix parsing camelcase container query name (#​11131)

v4.2.13

Compare Source

Patch Changes
  • fix: applying :global for +,~ sibling combinator when slots are present (#​9282)

v4.2.12

Compare Source

Patch Changes
  • fix: properly update svelte:component props when there are spread props (#​10604)

v4.2.11

Compare Source

Patch Changes
  • fix: check that component wasn't instantiated in connectedCallback (#​10466)

v4.2.10

Compare Source

Patch Changes
  • fix: add scrollend event type (#​10336)

  • fix: add fetchpriority attribute type (#​10390)

  • fix: Add miter-clip and arcs to stroke-linejoin attribute (#​10377)

  • fix: make inline doc links valid (#​10366)

v4.2.9

Compare Source

Patch Changes
  • fix: add types for popover attributes and events (#​10042)

  • fix: add gamepadconnected and gamepaddisconnected events (#​9864)

  • fix: make @types/estree a dependency (#​10149)

  • fix: bump axobject-query (#​10167)

v4.2.8

Compare Source

Patch Changes
  • fix: port over props that were set prior to initialization (#​9701)

v4.2.7

Compare Source

Patch Changes
  • fix: handle spreads within static strings (#​9554)

v4.2.6

Compare Source

Patch Changes
  • fix: adjust static attribute regex (#​9551)

v4.2.5

Compare Source

Patch Changes
  • fix: ignore expressions in top level script/style tag attributes (#​9498)

v4.2.4

Compare Source

Patch Changes
  • fix: handle closing tags inside attribute values (#​9486)

v4.2.3

Compare Source

Patch Changes
  • fix: improve a11y-click-events-have-key-events message (#​9358)

  • fix: more robust hydration of html tag (#​9184)

v4.2.2

Compare Source

Patch Changes
  • fix: support camelCase properties on custom elements (#​9328)

  • fix: add missing plaintext-only value to contenteditable type (#​9242)

  • chore: upgrade magic-string to 0.30.4 (#​9292)

  • fix: ignore trailing comments when comparing nodes (#​9197)

v4.2.1

Compare Source

Patch Changes
  • fix: update style directive when style attribute is present and is updated via an object prop (#​9187)

  • fix: css sourcemap generation with unicode filenames (#​9120)

  • fix: do not add module declared variables as dependencies (#​9122)

  • fix: handle svelte:element with dynamic this and spread attributes (#​9112)

  • fix: silence false positive reactive component warning (#​9094)

  • fix: head duplication when binding is present (#​9124)

  • fix: take custom attribute name into account when reflecting property (#​9140)

  • fix: add indeterminate to the list of HTMLAttributes (#​9180)

  • fix: recognize option value on spread attribute (#​9125)

v4.2.0

Compare Source

Minor Changes
  • feat: move svelteHTML from language-tools into core to load the correct svelte/element types (#​9070)

v4.1.2

Compare Source

Patch Changes
  • fix: allow child element with slot attribute within svelte:element (#​9038)

  • fix: Add data-* to svg attributes (#​9036)


Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


  • If you want to rebase/retry this PR, check this box

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socket-security bot commented Aug 30, 2024

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package New capabilities Transitives Size Publisher
npm/[email protected] Transitive: unsafe +22 6.56 MB svelte-admin

🚮 Removed packages: npm/[email protected]

View full report↗︎

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@renovate renovate bot changed the title Update dependency svelte to v4.2.19 [SECURITY] Update dependency svelte to v4.2.19 [SECURITY] - autoclosed Dec 8, 2024
@renovate renovate bot closed this Dec 8, 2024
@renovate renovate bot deleted the renovate/npm-svelte-vulnerability branch December 8, 2024 18:36
@renovate renovate bot changed the title Update dependency svelte to v4.2.19 [SECURITY] - autoclosed Update dependency svelte to v4.2.19 [SECURITY] Dec 8, 2024
@renovate renovate bot reopened this Dec 8, 2024
@renovate renovate bot force-pushed the renovate/npm-svelte-vulnerability branch from 528bcd8 to 47d8abf Compare December 8, 2024 22:40
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sonarqubecloud bot commented Dec 8, 2024

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