{"cve":"CVE-2026-42573","nvd":{"published":"2026-06-09T17:17:07.400","modified":"2026-07-23T08:10:00.137","status":"Modified","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.","cvss_v4":{"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","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["https://github.com/sveltejs/svelte/releases/tag/svelte%405.55.7","https://github.com/sveltejs/svelte/security/advisories/GHSA-rcqx-6q8c-2c42","https://access.redhat.com/security/cve/CVE-2026-42573","https://bugzilla.redhat.com/show_bug.cgi?id=2487093","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42573.json"],"products":["svelte:svelte"],"source":"nvd","synced_at":"2026-10-19T22:38:48.522727527+00:00"},"epss":{"cve":"CVE-2026-42573","score":0.00342,"percentile":0.27755,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-rcqx-6q8c-2c42","url":"https://osv.dev/vulnerability/GHSA-rcqx-6q8c-2c42","summary":"Svelte Vulnerable to XSS via DOM Clobbering of Internal Framework State","modified":"2026-06-09T18:45:28.738624174Z","packages":[{"ecosystem":"npm","name":"svelte","purl":"pkg:npm/svelte","ranges":["<5.55.7"],"fixed":["5.55.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}