CVE-2026-42573

Svelte is a performance oriented web framework. Prior to version 5.55.7, Svelte was vulnerable to DOM clobbering of its internal framework state on elements, potentially leading to XSS attacks. This issue has been patched in version 5.55.7.

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7	Product Release Notes
https://github.com/sveltejs/svelte/security/advisories/GHSA-rcqx-6q8c-2c42	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:svelte:svelte:*:*:*:*:*:node.js:*:*

History

11 Jun 2026, 18:46

Type	Values Removed	Values Added
First Time		Svelte svelte Svelte
CPE		cpe:2.3:a:svelte:svelte::::::node.js::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.1
References	~~() https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7 -~~	() https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7 - Product, Release Notes
References	~~() https://github.com/sveltejs/svelte/security/advisories/GHSA-rcqx-6q8c-2c42 -~~	() https://github.com/sveltejs/svelte/security/advisories/GHSA-rcqx-6q8c-2c42 - Vendor Advisory

09 Jun 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-09 17:17

Updated : 2026-06-11 18:46

NVD link : CVE-2026-42573

Mitre link : CVE-2026-42573

CVE.ORG link : CVE-2026-42573

JSON object : View

Products Affected

svelte

svelte

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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