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CVE-2026-52837

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 pag
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5826c1e9735a5b50a3647b1cd0d6e8d8b7c10fed0719f6e820283e768c50a434
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"easyappointments","vendor":"alextselegidis","versions":[{"status":"affected","version":"< 1.6.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","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","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-200","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-639","description":"CWE-639: Authorization Bypass Through User-Controlled Key","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/alextselegidis/easyappointments/commit/40bb0b31b531540bc9006efce4220eb0a437ed2b","tags":["x_refsource_MISC"],"url":"https://github.com/alextselegidis/easyappointments/commit/40bb0b31b531540bc9006efce4220eb0a437ed2b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/cna/references/1
{"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"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/alextselegidis/easyappointments/security/advisories/GHSA-xgr6-pqjv-3pf8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:1284fd408502e5170fbf991514460cc9bbd6f5b420b7af45753890439ef55cd0 · sha256:e36d090f24158315… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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