{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-115481",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-22T15:06:52.738Z",
        "datePublished": "2026-10-23T13:34:26.038Z",
        "dateUpdated": "2026-10-23T14:58:03.802Z"
    },
    "containers": {
        "cna": {
            "title": "baserCMS: BcCustomContent file fields can be configured to allow executable file extensions such as php, leading to arbitrary PHP file upload",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-434",
                            "lang": "en",
                            "description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "NONE",
                        "privilegesRequired": "LOW",
                        "userInteraction": "ACTIVE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 8.5,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/baserproject/basercms/security/advisories/GHSA-8jrp-4h7c-m679",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/baserproject/basercms/security/advisories/GHSA-8jrp-4h7c-m679"
                },
                {
                    "name": "https://github.com/baserproject/basercms/commit/2ed19c878add5c26fc765572e0e77173c1f1fdb5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/baserproject/basercms/commit/2ed19c878add5c26fc765572e0e77173c1f1fdb5"
                },
                {
                    "name": "https://github.com/baserproject/basercms/commit/b0ef31b10dc6267b48ebc9a80d34bc7c4c09c311",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/baserproject/basercms/commit/b0ef31b10dc6267b48ebc9a80d34bc7c4c09c311"
                },
                {
                    "name": "https://github.com/baserproject/basercms/releases/tag/5.3.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/baserproject/basercms/releases/tag/5.3.2"
                },
                {
                    "name": "https://github.com/baserproject/basercms/releases/tag/5.4.2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/baserproject/basercms/releases/tag/5.4.2"
                }
            ],
            "affected": [
                {
                    "vendor": "baserproject",
                    "product": "basercms",
                    "versions": [
                        {
                            "version": ">= 5.0.0-beta1, < 5.3.2",
                            "status": "affected"
                        },
                        {
                            "version": ">= 5.4.0, < 5.4.2",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-10-23T13:34:26.038Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "baserCMS is a website development framework. Starting in version 5.0.0-beta1 and prior to versions 5.3.2 and 5.4.2, `PermissionGroupsService::build()` reads a plugin's `config/permission.php` to decide what each user group may reach. When that file is absent it writes a wildcard allow rule instead: `url` `/baser/<prefix>/<plugin>/*`, `method` `*`, `auth` true, for every non-admin group. BcCustomContent has no such file in any release. After an administrator installs it, the default `operators` group can store and execute arbitrary PHP under the document root. Versions 5.3.2 and 5.4.2 patch the issue."
                }
            ],
            "source": {
                "advisory": "GHSA-8jrp-4h7c-m679",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-23T14:54:26.499088Z",
                                "id": "CVE-2026-115481",
                                "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": "2026-10-23T14:58:03.802Z"
                }
            }
        ]
    }
}