{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-12735",
        "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "state": "PUBLISHED",
        "assignerShortName": "certcc",
        "dateReserved": "2025-11-05T00:04:49.648Z",
        "datePublished": "2025-11-05T00:22:55.297Z",
        "dateUpdated": "2025-11-22T23:45:45.512Z"
    },
    "containers": {
        "cna": {
            "title": "CVE-2025-12735",
            "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."
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "affected": [
                {
                    "vendor": "silentmatt",
                    "product": "expr-eval",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "2.0.2",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "vendor": "expr-eval-fork",
                    "product": "expr-eval-fork",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThanOrEqual": "3.0.0",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-94: Improper Control of Generation of Code (‘Code Injection’)"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-1321: Improperly Controlled Modification of Object Prototype Attributes (‘Prototype Pollution’)"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "other": {
                        "type": "ssvcV2_0_0",
                        "content": {
                            "timestamp": "2025-11-07T15:47:01.238Z",
                            "schemaVersion": "2.0.0",
                            "selections": [
                                {
                                    "values": [
                                        {
                                            "key": "P",
                                            "name": "Public PoC"
                                        }
                                    ],
                                    "name": "Exploitation",
                                    "version": "1.1.0",
                                    "namespace": "ssvc",
                                    "definition": "The present state of exploitation of the vulnerability.",
                                    "key": "E"
                                },
                                {
                                    "values": [
                                        {
                                            "key": "Y",
                                            "name": "Yes"
                                        }
                                    ],
                                    "name": "Automatable",
                                    "version": "2.0.0",
                                    "namespace": "ssvc",
                                    "definition": "Can an attacker reliably automate creating exploitation events for this vulnerability?",
                                    "key": "A"
                                },
                                {
                                    "values": [
                                        {
                                            "key": "T",
                                            "name": "Total"
                                        }
                                    ],
                                    "name": "Technical Impact",
                                    "version": "1.0.0",
                                    "namespace": "ssvc",
                                    "definition": "The technical impact of the vulnerability.",
                                    "key": "TI"
                                }
                            ]
                        }
                    }
                }
            ],
            "references": [
                {
                    "url": "https://github.com/silentmatt/expr-eval"
                },
                {
                    "url": "https://github.com/jorenbroekema/expr-eval"
                },
                {
                    "url": "https://www.npmjs.com/package/expr-eval-fork"
                },
                {
                    "url": "https://www.npmjs.com/package/expr-eval"
                },
                {
                    "url": "https://github.com/silentmatt/expr-eval/pull/288"
                },
                {
                    "url": "https://github.com/advisories/GHSA-jc85-fpwf-qm7x",
                    "name": "Github Security Advisory",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://kb.cert.org/vuls/id/263614",
                    "name": "CERT/CC Advisory",
                    "tags": [
                        "third-party-advisory"
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "This issue was reported by Jangwoo Choe (UKO)",
                    "type": "finder"
                },
                {
                    "lang": "en",
                    "value": "Patch validation assistance provided by GitHub user huydoppaz.",
                    "type": "remediation verifier"
                }
            ],
            "x_generator": {
                "engine": "VINCE 3.0.28",
                "env": "prod",
                "origin": "https://cveawg.mitre.org/api/cve/CVE-2025-12735"
            },
            "providerMetadata": {
                "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
                "shortName": "certcc",
                "dateUpdated": "2025-11-22T23:45:45.512Z"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/jorenbroekema/expr-eval/blob/460b820ba01c5aca6c5d84a7d4f1fa5d1913c67b/test/security.js",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 9.8,
                            "attackVector": "NETWORK",
                            "baseSeverity": "CRITICAL",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                            "integrityImpact": "HIGH",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "HIGH"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-11-10T14:06:48.027568Z",
                                "id": "CVE-2025-12735",
                                "options": [
                                    {
                                        "Exploitation": "poc"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-11-10T14:07:11.995Z"
                }
            },
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://www.kb.cert.org/vuls/id/263614"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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                    "dateUpdated": "2025-11-08T00:11:55.078Z"
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}