FKIE_CVE-2025-13204

Vulnerability from fkie_nvd - Published: 2025-11-14 17:16 - Updated: 2026-01-08 18:28
Severity ?
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Summary
npm package `expr-eval` is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.
References
cret@cert.orghttps://github.com/SECCON/SECCON2022_final_CTF/blob/main/jeopardy/web/babybox/solver/solver.pyProduct
cret@cert.orghttps://github.com/jorenbroekema/expr-evalProduct
cret@cert.orghttps://github.com/silentmatt/expr-evalProduct
cret@cert.orghttps://github.com/silentmatt/expr-eval/pull/252/filesPatch, Issue Tracking
cret@cert.orghttps://github.com/vladko312/extras/blob/f549d505af300fd74a01b46fab2102990ff1c14d/expr-eval.pyProduct
cret@cert.orghttps://www.huntr.dev/bounties/1-npm-expr-eval/Exploit, Third Party Advisory
cret@cert.orghttps://www.npmjs.com/package/expr-eval-forkProduct
Impacted products
Vendor Product Version
silentmatt javascript_expression_evaluator *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:silentmatt:javascript_expression_evaluator:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "42044D1E-CC9F-4C3D-B832-9644D65BCCA1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "npm package `expr-eval` is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue."
    }
  ],
  "id": "CVE-2025-13204",
  "lastModified": "2026-01-08T18:28:13.923",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.3,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-11-14T17:16:01.603",
  "references": [
    {
      "source": "cret@cert.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/SECCON/SECCON2022_final_CTF/blob/main/jeopardy/web/babybox/solver/solver.py"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/jorenbroekema/expr-eval"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/silentmatt/expr-eval"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Patch",
        "Issue Tracking"
      ],
      "url": "https://github.com/silentmatt/expr-eval/pull/252/files"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/vladko312/extras/blob/f549d505af300fd74a01b46fab2102990ff1c14d/expr-eval.py"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.huntr.dev/bounties/1-npm-expr-eval/"
    },
    {
      "source": "cret@cert.org",
      "tags": [
        "Product"
      ],
      "url": "https://www.npmjs.com/package/expr-eval-fork"
    }
  ],
  "sourceIdentifier": "cret@cert.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1321"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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