CVE-2025-12735

{
  "id": "CVE-2025-12735",
  "sourceIdentifier": "[email protected]",
  "published": "2025-11-05T01:15:33.313",
  "lastModified": "2026-10-18T21:10:00.120",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The expr-eval library is a JavaScript expression parser and evaluator designed to safely evaluate mathematical expressions with user-defined variables. However, due to insufficient input validation, an attacker can pass a crafted context object or use MEMBER of the context object into the evaluate() function and trigger arbitrary code execution."
    },
    {
      "lang": "es",
      "value": "La biblioteca expr-eval es un analizador y evaluador de expresiones JavaScript diseñado para evaluar de forma segura expresiones matemáticas con variables definidas por el usuario. Sin embargo, debido a una validación de entrada insuficiente, un atacante puede pasar un objeto de contexto manipulado o usar MEMBER del objeto de contexto en la función evaluate() y desencadenar la ejecución de código arbitrario."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "silentmatt",
          "product": "expr-eval",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "2.0.2",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "expr-eval-fork",
          "product": "expr-eval-fork",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "3.0.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-11-10T14:06:48.027568Z",
          "id": "CVE-2025-12735",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:jorenbroekema:javascript_expression_evaluator:3.0.0:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "CDE513F1-E3F7-4FA9-BD2B-D310CA8853BD"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:silentmatt:javascript_expression_evaluator:*:*:*:*:*:node.js:*:*",
              "versionEndIncluding": "2.0.2",
              "matchCriteriaId": "3236DF0B-3012-4193-82D6-9D73D24D723F"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/advisories/GHSA-jc85-fpwf-qm7x",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/jorenbroekema/expr-eval",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://github.com/silentmatt/expr-eval",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://github.com/silentmatt/expr-eval/pull/288",
      "source": "[email protected]",
      "tags": [
        "Issue Tracking",
        "Patch"
      ]
    },
    {
      "url": "https://kb.cert.org/vuls/id/263614",
      "source": "[email protected]",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.npmjs.com/package/expr-eval",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://www.npmjs.com/package/expr-eval-fork",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/263614",
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/jorenbroekema/expr-eval/blob/460b820ba01c5aca6c5d84a7d4f1fa5d1913c67b/test/security.js",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "tags": [
        "Product"
      ]
    }
  ]
}