CVE-2024-53261: SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte

Routine

MEDIUM 5.4UPGRADE

CVE-2024-53261 is a medium-severity flaw (CVSS 5.4) affecting sveltekit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. "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)." The files `packages/kit/src/exports/vite/dev/index.js` and `packages/kit/src/exports/vite/utils.js` both contain user controllable data which under specific conditions may f

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-11-25
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: svelte

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-11-25 20:15 UTCPublished CVE record published
2026-06-17 08:08 UTCUpdated Record last modified

svelte sveltekit UPGRADE

Affected: < 2.8.3

Fixed in: 2.8.3

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls sveltekit

2. UPGRADE to 2.8.3

npm install sveltekit@">=2.8.3"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-53261?

sveltekit: upgrade to 2.8.3. Exact commands for each OS are on this page.

Is CVE-2024-53261 being exploited?

CVE-2024-53261 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-53261 affect?

CVE-2024-53261 affects sveltekit. Severity is medium (CVSS 5.4). SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. "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

How urgent is CVE-2024-53261?

Priority 25/100. No elevated risk signals yet.

Related CVEs

CVE-2024-53262 MEDIUM 5.4 UPGRADE SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte

References

← Back to latest CVEs