CVE-2026-52837

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{"affected": [{"affectedData": [{"product": "easyappointments", "vendor": "alextselegidis", "versions": [{"status": "affected", "version": "< 1.6.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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` \u2014 which appears in plain text in reschedule emails, confirmation page URLs, and operator-side calendar links \u2014 can read every column of that customer's row in the `ea_users` table. Version 1.6.0 contains a patch."}, {"lang": "es", "value": "Easy!Appointments es un programador de citas autoalojado. En versiones hasta la 1.5.2 inclusive, la vista de reprogramaci\u00f3n de reservas en \u201c/index.php/booking/reschedule/{appointment_hash}\u201d (gestionada por \u201cBooking::index()\u201d) incrusta el registro completo del cliente como JavaScript en l\u00ednea (\u201cconst vars = {... \u2019customer_data\u2019: {...}, ...}\u201d) sin autenticaci\u00f3n y sin lista blanca de campos. Cualquiera en posesi\u00f3n del \u201cappointment_hash\u201d de 12 caracteres - que aparece en texto plano en correos electr\u00f3nicos de reprogramaci\u00f3n, URL de p\u00e1ginas de confirmaci\u00f3n y enlaces de calendario del lado del operador - puede leer cada columna de la fila de ese cliente en la tabla \u201cea_users\u201d. La versi\u00f3n 1.6.0 contiene un parche."}], "id": "CVE-2026-52837", "lastModified": "2026-10-24T21:10:00.130", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-52837", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-07-21T18:45:20.387447Z", "version": "2.0.3"}}]}, "published": "2026-07-14T15:17:04.170", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/alextselegidis/easyappointments/commit/40bb0b31b531540bc9006efce4220eb0a437ed2b"}, {"source": "security-advisories@github.com", "url": "https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}, {"lang": "en", "value": "CWE-639"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

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