{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "state": "PUBLISHED",
        "cveId": "CVE-2021-21408",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "dateUpdated": "2025-04-23T19:14:12.719Z",
        "dateReserved": "2020-12-22T00:00:00.000Z",
        "datePublished": "2022-01-10T00:00:00.000Z"
    },
    "containers": {
        "cna": {
            "title": "Access to restricted PHP code by dynamic static class access in smarty",
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2022-11-14T00:00:00.000Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.43 and 4.0.3, template authors could run restricted static php methods. Users should upgrade to version 3.1.43 or 4.0.3 to receive a patch."
                }
            ],
            "affected": [
                {
                    "vendor": "smarty-php",
                    "product": "smarty",
                    "versions": [
                        {
                            "version": "< 3.1.43",
                            "status": "affected"
                        },
                        {
                            "version": ">= 4.0.0, < 4.0.3",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-4h9c-v5vg-5m6m"
                },
                {
                    "url": "https://github.com/smarty-php/smarty/commit/19ae410bf56007a5ef24441cdc6414619cfaf664"
                },
                {
                    "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.43"
                },
                {
                    "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.3"
                },
                {
                    "name": "[debian-lts-announce] 20220505 [SECURITY] [DLA 2995-1] smarty3 security update",
                    "tags": [
                        "mailing-list"
                    ],
                    "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
                },
                {
                    "name": "DSA-5151",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://www.debian.org/security/2022/dsa-5151"
                },
                {
                    "name": "GLSA-202209-09",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://security.gentoo.org/glsa/202209-09"
                },
                {
                    "name": "FEDORA-2022-52154efd61",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
                },
                {
                    "name": "FEDORA-2022-d5fc9dcdd7",
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "privilegesRequired": "LOW",
                        "userInteraction": "NONE",
                        "scope": "UNCHANGED",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "availabilityImpact": "HIGH",
                        "baseScore": 8.8,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "lang": "en",
                            "description": "CWE-20: Improper Input Validation",
                            "cweId": "CWE-20"
                        }
                    ]
                }
            ],
            "source": {
                "advisory": "GHSA-4h9c-v5vg-5m6m",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-03T18:09:16.192Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://github.com/smarty-php/smarty/security/advisories/GHSA-4h9c-v5vg-5m6m",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://github.com/smarty-php/smarty/commit/19ae410bf56007a5ef24441cdc6414619cfaf664",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://github.com/smarty-php/smarty/releases/tag/v3.1.43",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://github.com/smarty-php/smarty/releases/tag/v4.0.3",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "name": "[debian-lts-announce] 20220505 [SECURITY] [DLA 2995-1] smarty3 security update",
                        "tags": [
                            "mailing-list",
                            "x_transferred"
                        ],
                        "url": "https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html"
                    },
                    {
                        "name": "DSA-5151",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://www.debian.org/security/2022/dsa-5151"
                    },
                    {
                        "name": "GLSA-202209-09",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://security.gentoo.org/glsa/202209-09"
                    },
                    {
                        "name": "FEDORA-2022-52154efd61",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L777JIBIWJV34HS7LXPIDWASG7TT4LNI/"
                    },
                    {
                        "name": "FEDORA-2022-d5fc9dcdd7",
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BRAJVDRGCIY5UZ2PQHKDTT7RMKG6WJQQ/"
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-04-23T15:57:17.189839Z",
                                "id": "CVE-2021-21408",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "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": "2025-04-23T19:14:12.719Z"
                }
            }
        ]
    }
}