{"answers":{"affected":"2 open source packages ship an affected version, including astro. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-64764 exists.","fix":"Upgrade astro to 5.15.8 or later.","what":"CVE-2025-64764 is a high-severity cross-site scripting vulnerability in withastro astro, published on 19 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-64764 and fix it if it is affected.\n\nWhat it is: CVE-2025-64764 is a high-severity cross-site scripting vulnerability in withastro astro, published on 19 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-64764 exists.\n\nAffected packages and fixed versions:\n- astro (npm): affected all versions; fixed in 5.15.8\n- astro (npm): affected all versions; fixed in 5.15.8\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-64764/ (Markdown: https://insights.sbomify.com/CVE-2025-64764/index.md)","id":"CVE-2025-64764","markdown":"https://insights.sbomify.com/CVE-2025-64764/index.md","name":"CVE-2025-64764","record":{"aliases":["GHSA-wrwg-2hg8-v723"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Astro web framework","requires_auth":"none","summary":"Attackers can execute arbitrary scripts in user browsers via reflected XSS in Astro's server islands feature, requiring the feature to be enabled.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"astro","vendor":"astro"}],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-80","name":"Improper Neutralization of Script-Related HTML Tags in a Web Page"}],"description":"Astro is a web framework. Prior to version 5.15.8, a reflected XSS vulnerability is present when the server islands feature is used in the targeted application, regardless of what was intended by the component template(s). This issue has been patched in version 5.15.8.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":1,"refs":[{"date":null,"kind":"nuclei","ref":"http/cves/2025/CVE-2025-64764.yaml","stars":null,"title":"Astro - Reflected XSS via server islands feature"}],"tier":"weaponised"},"has_fix":true,"headline":"Astro is vulnerable to Reflected XSS via the server islands feature","id":"CVE-2025-64764","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2025"},"n_packages":2,"n_references":2,"next":{"headline":"Astro middleware authentication checks based on url.pathname can be bypassed via url encoded values","id":"CVE-2025-64765"},"packages":[{"ecosystem":"npm","fixed":["5.15.8"],"introduced":["0"],"last_affected":[],"package":"astro","purl":null,"source":"GHSA-wrwg-2hg8-v723"},{"ecosystem":"npm","fixed":["5.15.8"],"introduced":["0"],"last_affected":[],"package":"astro","purl":"pkg:npm/astro","source":"GHSA-wrwg-2hg8-v723"}],"prev":{"headline":"Envoy forwards early CONNECT data in TCP proxy mode","id":"CVE-2025-64763"},"products":["astro"],"published":"2025-11-19","related":[{"cvss_score":7.8,"headline":"Server source code is exposed to the public if sourcemaps are enabled","id":"CVE-2024-56159","kev_date_added":null,"published":"2024-12-19"},{"cvss_score":7.5,"headline":"Astro: Host header SSRF in prerendered error page fetch","id":"CVE-2026-54299","kev_date_added":null,"published":"2026-06-22"},{"cvss_score":7.2,"headline":"astro allows bypass of image proxy domain validation leading to SSRF and potential XSS","id":"CVE-2025-59837","kev_date_added":null,"published":"2025-10-28"},{"cvss_score":7.1,"headline":"Astro: Reflected XSS via unescaped slot name","id":"CVE-2026-50146","kev_date_added":null,"published":"2026-06-22"},{"cvss_score":6.9,"headline":"Astro middleware authentication checks based on url.pathname can be bypassed via url encoded values","id":"CVE-2025-64765","kev_date_added":null,"published":"2025-11-19"},{"cvss_score":6.9,"headline":"Unauthorized third-party images in Astro’s _image endpoint","id":"CVE-2025-55303","kev_date_added":null,"published":"2025-08-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-11-19","vendors":["withastro"]},"summary":"Attackers can execute arbitrary scripts in user browsers via reflected XSS in Astro's server islands feature, requiring the feature to be enabled.","url":"https://insights.sbomify.com/CVE-2025-64764/"}