{"action":"Upgrade astro to 5.15.8 or later.","affected":[{"fixed":"5.15.8","introduced":"0"}],"component":"astro","cve_ids":["CVE-2025-64764"],"ecosystem":"npm","epss":0.00528,"exploited":false,"fixed_versions":["5.15.8"],"ghsa_id":"GHSA-wrwg-2hg8-v723","id":"tcs_01M5KGFYGJR1T5RWZ1REP9PY66","modified_at":"2025-11-20T14:43:59.624508Z","published_at":"2025-11-19T20:00:14Z","references":["https://osv.dev/vulnerability/GHSA-wrwg-2hg8-v723","https://github.com/withastro/astro/security/advisories/GHSA-wrwg-2hg8-v723","https://nvd.nist.gov/vuln/detail/CVE-2025-64764","https://github.com/withastro/astro/commit/790d9425f39bbbb462f1c27615781cd965009f91","https://github.com/withastro/astro"],"severity":{"label":"high","score":7.1},"sources":[{"source":"osv","source_id":"GHSA-wrwg-2hg8-v723","url":"https://osv.dev/vulnerability/GHSA-wrwg-2hg8-v723"}],"summary":"Astro vulnerable to reflected XSS via the server islands feature"}