{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-52841",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-06-08T18:41:27.724Z",
        "datePublished": "2026-07-14T15:27:50.367Z",
        "dateUpdated": "2026-07-14T15:45:45.967Z"
    },
    "containers": {
        "cna": {
            "title": "Easy!Appointments: Authorization bypass in Google OAuth provider binding lets any backend user rebind a peer provider's Google sync",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-639",
                            "lang": "en",
                            "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "NONE",
                        "baseScore": 3.1,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "HIGH",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-8hm4-r66f-29wr",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-8hm4-r66f-29wr"
                },
                {
                    "name": "https://github.com/alextselegidis/easyappointments/commit/4b2d245d2cd2058dc76e05f6eb65b26699268471",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/alextselegidis/easyappointments/commit/4b2d245d2cd2058dc76e05f6eb65b26699268471"
                }
            ],
            "affected": [
                {
                    "vendor": "alextselegidis",
                    "product": "easyappointments",
                    "versions": [
                        {
                            "version": "< 1.6.0",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-14T15:27:50.367Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "Easy!Appointments is a self hosted appointment scheduler. In versions prior to 1.6.0, `Google::oauth` at `application/controllers/Google.php:278` stores its URL-supplied `provider_id` in the session, and `oauth_callback` saves the issued Google OAuth token against that row without checking the caller owns the provider. Any logged-in backend user (admin, provider, or secretary) rebinds a peer provider's Google sync to a Google account they control. The peer's appointments then sync into the attacker's calendar with each customer's name and email attached as attendee data. Version 1.6.0 patches the issue."
                }
            ],
            "source": {
                "advisory": "GHSA-8hm4-r66f-29wr",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-8hm4-r66f-29wr",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-14T15:45:35.488362Z",
                                "id": "CVE-2026-52841",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-14T15:45:45.967Z"
                }
            }
        ]
    }
}