fkie_cve-2025-26210
Vulnerability from fkie_nvd
Published
2025-09-03 14:15
Modified
2025-09-26 13:58
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
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.
References
cve@mitre.orghttps://deepseek.comPermissions Required
cve@mitre.orghttps://hackmd.io/@MrqrFIlhQFi7vUwkqbrXDw/deepseekExploit, Third Party Advisory
cve@mitre.orghttps://youtu.be/IgQwy52FVT4Exploit
Impacted products
Vendor Product Version
deepseek deepseek-r1 1.0
deepseek deepseek-v2 -
deepseek deepseek-v3 1.0


To clipboard 

{
  "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."
    }
  ],
  "id": "CVE-2025-26210",
  "lastModified": "2025-09-26T13:58:31.357",
  "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"
      }
    ]
  },
  "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"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.