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vuln-cve/data/2026/52xxx/CVE-2026-52837.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-52837",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-06-08T18:41:27.723Z",
"datePublished": "2026-07-14T14:48:26.692Z",
"dateUpdated": "2026-07-29T16:28:13.175Z"
},
"containers": {
"cna": {
"title": "Easy!Appointments has unauthenticated customer PII disclosure on booking reschedule page",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"lang": "en",
"description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-639",
"lang": "en",
"description": "CWE-639: Authorization Bypass Through User-Controlled Key",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8"
},
{
"name": "https://github.com/alextselegidis/easyappointments/commit/40bb0b31b531540bc9006efce4220eb0a437ed2b",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/alextselegidis/easyappointments/commit/40bb0b31b531540bc9006efce4220eb0a437ed2b"
}
],
"affected": [
{
"vendor": "alextselegidis",
"product": "easyappointments",
"versions": [
{
"version": "< 1.6.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-07-29T16:28:13.175Z"
},
"descriptions": [
{
"lang": "en",
"value": "Easy!Appointments is a self hosted appointment scheduler. In versions up to and including 1.5.2, the booking reschedule view at `/index.php/booking/reschedule/{appointment_hash}` (handled by `Booking::index()`) embeds the entire customer record as inline JavaScript (`const vars = {... \"customer_data\": {...}, ...}`) without authentication and without field whitelisting. Anyone in possession of the 12-character `appointment_hash` — which appears in plain text in reschedule emails, confirmation page URLs, and operator-side calendar links — can read every column of that customer's row in the `ea_users` table. Version 1.6.0 contains a patch."
}
],
"source": {
"advisory": "GHSA-xgr6-pqjv-3pf8",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-21T18:45:20.387447Z",
"id": "CVE-2026-52837",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"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": "2026-07-21T18:45:39.146Z"
}
}
]
}
}