CVE-2025-26210

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:deepseek:deepseek-r1:1.0:*:*:*:*:*:*:*", "matchCriteriaId": "65A5D72C-C327-4A9E-AA69-A9B18AED07E6", "vulnerable": true}, {"criteria": "cpe:2.3:a:deepseek:deepseek-v2:-:*:*:*:*:*:*:*", "matchCriteriaId": "CCAE8C5A-E47F-4053-B8BE-B2849A5B187D", "vulnerable": true}, {"criteria": "cpe:2.3:a:deepseek:deepseek-v3:1.0:*:*:*:*:*:*:*", "matchCriteriaId": "7E915B8C-D3B1-4300-BF8A-2FED196BC8EF", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [{"sourceIdentifier": "cve@mitre.org", "tags": ["disputed"]}], "descriptions": [{"lang": "en", "value": "DeepSeek R1 through V3.1 allows XSS, as demonstrated by JavaScript execution in the context of the run-html-chat.deepseeksvc.com domain. NOTE: some third parties have indicated that this is intended behavior."}, {"lang": "es", "value": "DeepSeek R1 hasta V3.1 permite XSS, como se demuestra mediante la ejecuci\u00f3n de JavaScript en el contexto del dominio run-html-chat.deepseeksvc.com. NOTA: algunos terceros han indicado que este es un comportamiento intencionado."}], "id": "CVE-2025-26210", "lastModified": "2026-11-07T18:10:00.200", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-26210", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2025-09-08T17:37:20.327016Z", "version": "2.0.3"}}]}, "published": "2025-09-03T14:15:44.430", "references": [{"source": "cve@mitre.org", "tags": ["Permissions Required"], "url": "https://deepseek.com"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://hackmd.io/@MrqrFIlhQFi7vUwkqbrXDw/deepseek"}, {"source": "cve@mitre.org", "tags": ["Exploit"], "url": "https://youtu.be/IgQwy52FVT4"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"created": "2025-09-04T13:12:30.199696+00:00", "updated": "2025-09-04T13:12:30.199780+00:00", "vendors": ["deepseek", "deepseek$PRODUCT$deepseek"]}