CVE-2026-42573

—

CVSS 4.0

5.3 medium

EPSS

<1%p27

Published

Jun 9, 2026 (Jun 9, 2026)

Modified

Jul 23, 2026

Description

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.

Vendors: svelte
Products: svelte
Weakness: CWE-79
Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/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 CVE.org GitHub PoCs EPSS (0.3%)

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