{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-114624",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-10-21T20:34:25.600Z",
        "datePublished": "2026-10-23T13:47:08.832Z",
        "dateUpdated": "2026-10-23T13:47:08.832Z"
    },
    "containers": {
        "cna": {
            "title": "baserCMS: PHP object injection via unguarded unserialize() in the widget-area entity",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-502",
                            "lang": "en",
                            "description": "CWE-502: Deserialization of Untrusted Data",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 7.2,
                        "baseSeverity": "HIGH",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "HIGH",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/baserproject/basercms/security/advisories/GHSA-xf6p-r2hc-cc6w",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/baserproject/basercms/security/advisories/GHSA-xf6p-r2hc-cc6w"
                },
                {
                    "name": "https://github.com/baserproject/basercms/commit/38c778e92688e7f5d620a4c6b47ad7fb9e2c1529",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/baserproject/basercms/commit/38c778e92688e7f5d620a4c6b47ad7fb9e2c1529"
                },
                {
                    "name": "https://github.com/baserproject/basercms/commit/59dfe61e193ae3274c195c15e7b185816d2db9db",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/baserproject/basercms/commit/59dfe61e193ae3274c195c15e7b185816d2db9db"
                },
                {
                    "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, < 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": "2026-10-23T13:47:08.832Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "baserCMS is a website development framework. In versions 5.0.0 before 5.3.2 and 5.4.0 before 5.4.2, the widget-area entity serializes widgets only when the submitted value is an array, allowing a string submitted through the admin JSON API to be stored unchanged. Entity reads, including front-end rendering and API responses, deserialize the stored value with unserialize() without an allowed_classes restriction, accepting both raw and base64-encoded serialized data. An administrator, or an attacker who obtains widget-write capability through a separate vulnerability such as chained XSS, can plant an object graph that subsequently triggers on unauthenticated page requests. Two demonstrated gadget chains in the default dependency set use composer/composer ProcessExecutor::startJob() with Process::fromShellCommandline(), or logiscape/mcp-sdk-php StdioTransport::connect() with StdioServerParameters, to reach proc_open() and execute commands as the web-server user. Deserialization bypasses constructor-based readonly safeguards, and the stored payload can execute repeatedly until the database row is repaired. Unauthenticated page access is a trigger after privileged payload storage, not an unauthenticated means of initially planting the payload. This issue has been patched in versions 5.3.2 and 5.4.2."
                }
            ],
            "source": {
                "advisory": "GHSA-xf6p-r2hc-cc6w",
                "discovery": "UNKNOWN"
            }
        }
    }
}