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Update dependency svelte to v4 [SECURITY] #60

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renovate wants to merge 1 commit into main from renovate/npm-svelte-vulnerability

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renovate bot commented Aug 30, 2024 •

edited

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This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
svelte (source)	`3.50.1` -> `4.2.19`

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:
- < -> <
- & -> &
- 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`

Patch Changes

fix: ensure typings for <svelte:options> are picked up (#12902)
fix: escape < in attribute strings (#12989)

`v4.2.18`

Patch Changes

chore: speed up regex (#11922)

`v4.2.17`

Patch Changes

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

`v4.2.16`

Patch Changes

fix: check if svelte component exists on custom element destroy (#11489)

`v4.2.15`

Patch Changes

support attribute selector inside :global() (#11135)

`v4.2.14`

Patch Changes

fix parsing camelcase container query name (#11131)

`v4.2.13`

Patch Changes

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

`v4.2.12`

Patch Changes

fix: properly update svelte:component props when there are spread props (#10604)

`v4.2.11`

Patch Changes

fix: check that component wasn't instantiated in connectedCallback (#10466)

`v4.2.10`

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`

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`

Patch Changes

fix: port over props that were set prior to initialization (#9701)

`v4.2.7`

Patch Changes

fix: handle spreads within static strings (#9554)

`v4.2.6`

Patch Changes

fix: adjust static attribute regex (#9551)

`v4.2.5`

Patch Changes

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

`v4.2.4`

Patch Changes

fix: handle closing tags inside attribute values (#9486)

`v4.2.3`

Patch Changes

fix: improve a11y-click-events-have-key-events message (#9358)
fix: more robust hydration of html tag (#9184)

`v4.2.2`

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`

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`

Minor Changes

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

`v4.1.2`

Patch Changes

fix: allow child element with slot attribute within svelte:element (#9038)
fix: Add data-* to svg attributes (#9036)

`v4.1.1`

Patch Changes

fix: svelte:component spread props change not picked up (#9006)

`v4.1.0`

Minor Changes

feat: add ability to extend custom element class (#8991)

Patch Changes

fix: ensure svelte:component evaluates props once (#8946)
fix: remove let:variable slot bindings from select binding dependencies (#8969)
fix: handle destructured primitive literals (#8871)
perf: optimize imports that are not mutated or reassigned (#8948)
fix: don't add accessor twice (#8996)

`v4.0.5`

Patch Changes

fix: generate type definition with nullable types (#8924)

`v4.0.4`

Patch Changes

fix: claim svg tags in raw mustache tags correctly (#8910)
fix: repair invalid raw html content during hydration (#8912)

`v4.0.3`

Patch Changes

fix: handle falsy srcset values (#8901)

`v4.0.2`

Patch Changes

fix: reflect all custom element prop updates back to attribute (#8898)
fix: shrink custom element baseline a bit (#8858)
fix: use non-destructive hydration for all @html tags (#8880)
fix: align disclose-version exports specification (#8874)
fix: check srcset when hydrating to prevent needless requests (#8868)

`v4.0.1`

Patch Changes

fix: ensure identifiers in destructuring contexts don't clash with existing ones (#8840)
fix: ensure createEventDispatcher and ActionReturn work with types from generic function parameters (#8872)
fix: apply transition to <svelte:element> with local transition (#8865)
fix: relax a11y "no redundant role" rule for li, ul, ol (#8867)
fix: remove tsconfig.json from published package (#8859)

`v4.0.0`

Major Changes

breaking: Minimum supported Node version is now Node 16 (#8566)
breaking: Minimum supported webpack version is now webpack 5 (#8515)
breaking: Bundlers must specify the browser condition when building a frontend bundle for the browser (#8516)
breaking: Minimum supported vite-plugin-svelte version is now 2.4.1. SvelteKit users can upgrade to 1.20.0 or newer to ensure a compatible version (#8516)
breaking: Minimum supported rollup-plugin-svelte version is now 7.1.5 (198dbcf)
breaking: Minimum supported svelte-loader is now 3.1.8 (198dbcf)
breaking: Minimum supported TypeScript version is now TypeScript 5 (it will likely work with lower versions, but we make no guarantees about that) (#8488)
breaking: Remove svelte/register hook, CJS runtime version and CJS compiler output (#8613)
breaking: Stricter types for createEventDispatcher (see PR for migration instructions) (#7224)
breaking: Stricter types for Action and ActionReturn (see PR for migration instructions) (#7442)
breaking: Stricter types for onMount - now throws a type error when returning a function asynchronously to catch potential mistakes around callback functions
(see PR for migration instructions) (#8136)
breaking: Overhaul and drastically improve creating custom elements with Svelte (see PR for list of changes and migration instructions) (#8457)
breaking: Deprecate SvelteComponentTyped in favor of SvelteComponent (#8512)
breaking: Make transitions local by default to prevent confusion around page navigations (#6686)
breaking: Error on falsy values instead of stores passed to derived (#7947)
breaking: Custom store implementers now need to pass an update function additionally to the set function (#6750)
breaking: Do not expose default slot bindings to named slots and vice versa (#6049)
breaking: Change order in which preprocessors are applied (#8618)
breaking: The runtime now makes use of classList.toggle(name, boolean) which does not work in very old browsers (#8629)
breaking: apply inert to outroing elements (#8628)
breaking: use CustomEvent constructor instead of deprecated createEvent method (#8775)

Minor Changes

Add a way to modify attributes for script/style preprocessors (#8618)
Improve hydration speed by adding data-svelte-h attribute to detect unchanged HTML elements (#7426)
Add a11y no-noninteractive-element-interactions rule (#8391)
Add a11y-no-static-element-interactionsrule (#8251)
Allow #each to iterate over iterables like Set, Map etc (#7425)
Improve duplicate key error for keyed each blocks (#8411)
Warn about : in attributes and props to prevent ambiguity with Svelte directives (#6823)
feat: add version info to window. You can opt out by setting discloseVersion to false in the compiler options (#8761)
feat: smaller minified output for destructor chunks (#8763)

Patch Changes

Bind null option and input values consistently (#8312)
Allow $store to be used with changing values including nullish values (#7555)
Initialize stylesheet with /* empty */ to enable setting CSP directive that also works in Safari (#7800)
Treat slots as if they don't exist when using CSS adjacent and general sibling combinators (#8284)
Fix transitions so that they don't require a style-src 'unsafe-inline' Content Security Policy (CSP) (#6662).
Explicitly disallow var declarations extending the reactive statement scope (#6800)
Improve error message when trying to use animate: directives on inline components (#8641)
fix: export ComponentType from svelte entrypoint (#8578)
fix: never use html optimization for mustache tags in hydration mode (#8744)
fix: derived store types (#8578)
Generate type declarations with dts-buddy (#8578)
fix: ensure types are loaded with all TS settings (#8721)
fix: account for preprocessor source maps when calculating meta info (#8778)
chore: deindent cjs output for compiler (#8785)
warn on boolean compilerOptions.css (#8710)
fix: export correct SvelteComponent type (#8721)

`v3.59.2`

Fix escaping <textarea bind:value={...}> values in SSR

`v3.59.1`

Handle dynamic values in a11y-autocomplete-valid (#8567)

`v3.59.0`

Add ResizeObserver bindings contentRect/contentBoxSize/borderBoxSize/devicePixelContentBoxSize (#8022)
Add devicePixelRatio binding for <svelte:window> (#8285)
Add fullscreenElement and visibilityState bindings for <svelte:document> (#8507)
Add a11y-autocomplete-valid warning (#8520)
Fix handling of width/height attributes when spreading (#6752)
Fix updating of interpolated style: directive when using spread (#8438)
Remove style: directive property when value is undefined (#8462)
Fix type of VERSION compiler export (#8498)
Relax a11y-no-redundant-roles warning (#8536)
Handle nested array rest destructuring (#8552, #8554)

`v3.58.0`

Add bind:innerText for contenteditable elements (#3311)
Add support for CSS @container queries (#6969)
Respect preserveComments in DOM output (#7182)
Allow use of document for target in typings (#7554)
Add a11y-interactive-supports-focus warning (#8392)
Fix equality check when updating dynamic text (#5931)
Relax a11y-no-noninteractive-element-to-interactive-role warning (#8402)
Properly handle microdata attributes (#8413)
Prevent name collision when using computed destructuring variables (#8417)
Fix escaping <textarea value={...}> values in SSR (#8429)

`v3.57.0`

Add <svelte:document> (#3310)
Add a11y no-noninteractive-element-to-interactive-role (#8167)
Stop intro transition from triggering incorrectly (#6152, #6812)
Support computed and literal properties when destructuring objects in the template (#6609)
Give style: directive precedence over style= attribute (#7475)
Select <option> with selected attribute when initial state is undefined (#8361)
Prevent derived store callbacks after store is unsubscribed from (#8364)
Account for bind:group members being spread across multiple control flow blocks (#8372)
Revert buggy reactive statement optimization (#8374)
Support CSS units in the fly and blur transitions (#7623)

`v3.56.0`

Add |stopImmediatePropagation event modifier (#5085)
Add axis parameter to slide transition (#6182)
Add readonly utility to convert writable store to readonly (#6518)
Add readyState binding for media elements (#6666)
Generate valid automatic component names when the filename contains only special characters (#7143)
Add naturalWidth and naturalHeight bindings (#7771)
Support  on components (#8082)
Add a11y warnings:
- aria-activedescendant-has-tabindex: checks that elements with aria-activedescendant have a tabindex (#8172)
- role-supports-aria-props: checks that the (implicit) element role supports the given aria attributes (#8195)
Add data-sveltekit-replacestate and data-sveltekit-keepfocus attribute typings (#8281)
Compute node dimensions immediately before crossfading (#4111)
Fix potential infinite invalidate loop with <svelte:component> (#4129)
Ensure bind:offsetHeight updates initially (#4233)
Don't set selected options if value is unbound or not passed (#5644)
Validate component :global() selectors (#6272)
Improve warnings:
- Make noreferrer warning less zealous (#6289)
- Omit a11y warnings on <video aria-hidden="true"> (#7874)
- Omit a11y warnings on <svelte:element> (#7939)
- Detect unused empty attribute CSS selectors (#8042)
- Omit "no child content" warning on elements with aria-label (#8296)
Check value equality for <input type="search"> and <input type="url"> (#7027)
Do not select a disabled <option> by default when the initial bound value is undefined (#7041)
Handle {@html} tags inside <template> tags (#7364)
Ensure afterUpdate is not called after onDestroy (#7476)
Improve handling of inert attribute (#7500)
Reduce use of template literals in SSR output for better performance (#7539)
Ensure <input> value persists when swapping elements with spread attributes in an {#each} block (#7578)
Simplify generated code for reactive statements if dependencies are all static (#7942)
Fix race condition on <svelte:element> with transitions (#7948)
Allow assigning to a property of a const when destructuring (#7964)
Match browser behavior for decoding malformed HTML entities (#8026)
Ensure trusted-types CSP compatibility for Web Components (#8134)
Optimise <svelte:element> output code for static tag and static attribute (#8161)
Don't throw when calling unsubscribing from a store twice (#8186)
Clear inputs when bind:group value is set to undefined (#8214)
Fix handling of nested arrays with keyed {#each} containing a non-keyed {#each} (#8282)

`v3.55.1`

Fix draw transition with delay showing a dot at the beginning of the path (#6816)
Fix infinity runtime call stack when propagating bindings (#7032)
Fix static <svelte:element> optimization in production mode (#7937)
Fix svelte-ignore comment breaking named slot (#8075)
Revert change to prevent running init binding unnecessarily (#8103)
Fix adding duplicate event listeners with <svelte:element on:event> (#8129)
Improve detection of promises that are also functions (#8162)
Avoid mutating spread component props during SSR (#8171)
Add missing typing for global part attribute (#8181)
Add missing submitter property to on:submit event type

`v3.55.0`

Add svelte/elements for HTML/Svelte typings (#7649)

`v3.54.0`

Pass options.direction argument to custom transition functions (#3918)
Support fallback a11y WAI-ARIA roles (#8044)
Prevent running init binding unnecessarily (#5689, #6298)
Allow updating variables from @const declared function (#7843)
Do not emit a11y-no-noninteractive-tabindex warning if element has a tabpanel (#8025)
Fix escaping SSR'd values in style: directive (#8085)

`v3.53.1`

Fix exception in rel= attribute check with dynamic values (#7994)
Do not emit deprecation warnings for css compiler options for now (#8009)
Make compiler run in browser again (#8010)
Upgrade tslib (#8013)

`v3.53.0`

Check whether parentNode exists before removing child (#6037)
Upgrade various dependencies, notably css-tree to 2.2.1 (#7572, #7982)
Extend css compiler option with 'external' | 'injected' | 'none' settings and deprecate old true | false values (#7914)

`v3.52.0`

Throw compile-time error when attempting to update const variable (#4895)
Warn when using <a target="_blank"> without rel="noreferrer" (#6188)
Support style:foo|important modifier (#7365)
Fix hydration regression with {@html} and components in <svelte:head> (#7941)

`v3.51.0`

Add a11y warnings:
- a11y-click-events-have-key-events: check if click event is accompanied by key events (#5073)
- a11y-no-noninteractive-tabindex: check for tabindex on non-interactive elements (#6693)
Warn when two-way binding to {...rest} object in {#each} block (#6860)
Support --style-props on <svelte:component> (#7461)
Supports nullish values for component event handlers (#7568)
Supports SVG elements with <svelte:element>(#7613)
Treat inert as boolean attribute (#7785)
Support --style-props for SVG components (#7808)
Fix false positive dev warnings about unset props when they are bound (#4457)
Fix hydration with {@html} and components in <svelte:head> (#4533, #6463, #7444)
Support scoped style for <svelte:element> (#7443)
Improve error message for invalid value for <svelte:component this={...}> (#7550)
Improve error message when using logic blocks or tags at invalid location (#7552)
Warn instead of throwing error if <svelte:element> is a void tag (#7566)
Supports custom elements in <svelte:element> (#7733)
Fix calling component unmount if a component is mounted and then immediately unmounted (#7817)
Do not generate a11y-role-has-required-aria-props warning when elements match their semantic role (#7837)
Improve performance of custom element data setting in <svelte:element> (#7869)

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          Update dependency svelte to v4 [SECURITY]

c1bfce2

Dependency update (patch) :)

vercel bot commented Aug 30, 2024 •

edited

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