{"id":"CVE-2024-47885","aliases":["GHSA-m85w-3h95-hcf9"],"url":"https://o3.security/vulnerability/CVE-2024-47885","summary":"astro's client-side router has DOM Clobbering Gadget that leads to XSS","details":"The Astro web framework has a DOM Clobbering gadget in the client-side router starting in version 3.0.0 and prior to version 4.16.1. It can lead to cross-site scripting (XSS) in websites enables Astro's client-side routing and has *stored* attacker-controlled scriptless HTML elements (i.e., `iframe` tags with unsanitized `name` attributes) on the destination pages. This vulnerability can result in cross-site scripting (XSS) attacks on websites that built with Astro that enable the client-side routing with `ViewTransitions` and store the user-inserted scriptless HTML tags without properly sanitizing the `name` attributes on the page. Version 4.16.1 contains a patch for this issue.","published":"2024-10-14T19:06:09.681Z","modified":"2026-08-08T03:48:07.442214713Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"astro","fixedVersion":"4.16.1"}],"fix":{"url":"https://github.com/withastro/astro/commit/a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e","label":"withastro/astro@a4ffbfa"},"references":[{"type":"WEB","url":"https://github.com/withastro/astro/blob/7814a6cad15f06931f963580176d9b38aa7819f2/packages/astro/src/transitions/router.ts#L135-L156"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47885.json"},{"type":"ADVISORY","url":"https://github.com/withastro/astro/security/advisories/GHSA-m85w-3h95-hcf9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-47885"},{"type":"FIX","url":"https://github.com/withastro/astro/commit/a4ffbfaa5cb460c12bd486fd75e36147f51d3e5e"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T03:48:07.442214713Z"}}