CVE-2024-53262 json
Unescaped error message included on error page in SvelteKit
published 2024-11-25 23 mo ago modified 2026-06-17 4 mo ago also EUVD-2024-3369 , GHSA-mh2x-fcqh-fmqv
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. The static error.html template for errors contains placeholders that are replaced without escaping the content first. error.html is the page that is rendered when everything else fails. It can contain the following placeholders: %sveltekit.status% — the HTTP status, and %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. 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 This issue has been addressed in version 2.8.3 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Patch / fix
- npm @sveltejs/kit 2.8.3
- svelte kit 2.8.3
- svelte sveltekit 2.8.3
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 23 mo ago
Exploit prediction
0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 2.0 | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |
| GitHub | 3.1 | 4.2 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
| CNA | 4.0 | 2.0 | CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @sveltejs/kit | <2.8.3 |
2.8.3 |
Affected products
- sveltejs kit
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/sveltejs/kit/commit/134e36343ef57ed7e6e2b3bb9e7f05ad37865794
web, patch
-
github.com
/sveltejs/kit/pull/13050
web
-
github.com
/sveltejs/kit/security/advisories/GHSA-mh2x-fcqh-fmqv
web, third-party-advisory
-
kit.svelte.dev
/docs/errors
web, issue-tracking
-
nvd.nist.gov
/vuln/detail/CVE-2024-53262
advisory
-
github.com
/sveltejs/kit
package
-
github.com
/sveltejs/kit/releases/tag/%40sveltejs%2Fkit%402.8.3
web
Sources
- CVE List CVE-2024-53262
- GitHub Advisory GHSA-mh2x-fcqh-fmqv
- NVD CVE-2024-53262
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.