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CVE-2026-42573

Svelte: XSS via DOM Clobbering of Internal Framework State PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
sveltejs / svelteaffected < 5.55.7

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

redhat-SADP

A flaw was found in Svelte, a web framework. An attacker could exploit a DOM clobbering vulnerability, which allows manipulation of the Document Object Model (DOM) to overwrite internal framework state on elements. This could potentially lead to Cross-Site Scripting (XSS) attacks, enabling the attacker to inject malicious scripts into web pages viewed by other users.