cvelist/2023/34xxx/CVE-2023-34448.json

{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2023-34448",
        "ASSIGNER": "security-advisories@github.com",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default `filter()` function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke arbitrary unsafe functions, thereby allowing for remote code execution. A patch in version 1.74.2 overrides the built-in Twig `map()` and `reduce()` filter functions in `system/src/Grav/Common/Twig/Extension/GravExtension.php` to validate the argument passed to the filter in `$arrow`."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-20: Improper Input Validation",
                        "cweId": "CWE-20"
                    }
                ]
            },
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
                        "cweId": "CWE-1336"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "getgrav",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "grav",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "=",
                                            "version_value": "< 1.7.42"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://github.com/getgrav/grav/security/advisories/GHSA-whr7-m3f8-mpm8",
                "refsource": "MISC",
                "name": "https://github.com/getgrav/grav/security/advisories/GHSA-whr7-m3f8-mpm8"
            },
            {
                "url": "https://github.com/getgrav/grav/commit/8c2c1cb72611a399f13423fc6d0e1d998c03e5c8",
                "refsource": "MISC",
                "name": "https://github.com/getgrav/grav/commit/8c2c1cb72611a399f13423fc6d0e1d998c03e5c8"
            },
            {
                "url": "https://github.com/twigphp/Twig/blob/v1.44.7/src/Environment.php#L148",
                "refsource": "MISC",
                "name": "https://github.com/twigphp/Twig/blob/v1.44.7/src/Environment.php#L148"
            },
            {
                "url": "https://huntr.dev/bounties/3ef640e6-9e25-4ecb-8ec1-64311d63fe66/",
                "refsource": "MISC",
                "name": "https://huntr.dev/bounties/3ef640e6-9e25-4ecb-8ec1-64311d63fe66/"
            },
            {
                "url": "https://www.github.com/getgrav/grav/commit/9d6a2dba09fd4e56f5cdfb9a399caea355bfeb83",
                "refsource": "MISC",
                "name": "https://www.github.com/getgrav/grav/commit/9d6a2dba09fd4e56f5cdfb9a399caea355bfeb83"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-whr7-m3f8-mpm8",
        "discovery": "UNKNOWN"
    },
    "impact": {
        "cvss": [
            {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 8.8,
                "baseSeverity": "HIGH",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
            }
        ]
    }
}