{"id":"CVE-2026-52837","summary":"Easy!Appointments has unauthenticated customer PII disclosure on booking reschedule page","details":"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.","aliases":["GHSA-xgr6-pqjv-3pf8"],"modified":"2026-08-12T03:51:26.278076794Z","published":"2026-07-14T14:48:26.692Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-200","CWE-639"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52837.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52837.json"},{"type":"ADVISORY","url":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-52837"},{"type":"FIX","url":"https://github.com/alextselegidis/easyappointments/commit/40bb0b31b531540bc9006efce4220eb0a437ed2b"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/alextselegidis/easyappointments","events":[{"introduced":"0"},{"fixed":"40bb0b31b531540bc9006efce4220eb0a437ed2b"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.6.0"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["1.6.0-beta.2","1.6.0-beta.1","1.6.0-alpha.1","1.5.2-beta.1","1.5.1","1.5.1-beta.1","1.5.0","1.5.0-beta.1","1.5.0-alpha.1","1.5.0-dev.4","1.5.0-dev.3","1.5.0-dev.2","1.5.0-dev.1","1.3.0-beta.2","1.3.0-beta.1","1.3.0-alpha.1","1.2.0-beta.1","1.2.0-alpha.1","1.1.0","1.1.0-beta.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52837.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"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"}]}