{"items":[{"id":"NVI-00004877","kind":"vulnerability","title":"Easy!Appointments Vulnerable to Appointments Takeover via Excessive Data Exposure","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-4vmm-5qvc-w5p7","CVE-2026-55651"],"plain_summary":"OSV carries this publisher advisory for alextselegidis/easyappointments. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-b5dfc5d22aec9a5a813c4751a3f2924e"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-24T21:10:00.130Z","value":"7.1 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-6f6090fa2ce20724cc411f25b9c3fb63"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.228%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.13564. Missing scores are unknown.","source_id":"sr-b5dfc5d22aec9a5a813c4751a3f2924e"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-773347cc138d71829bf4d05c61c881de","url":"https://github.com/advisories/GHSA-4vmm-5qvc-w5p7","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-4vmm-5qvc-w5p7","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.673Z"},{"id":"sr-6f6090fa2ce20724cc411f25b9c3fb63","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55651","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55651","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:39.943Z"},{"id":"sr-b5dfc5d22aec9a5a813c4751a3f2924e","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-55651","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.383Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-773347cc138d71829bf4d05c61c881de"],"technology":"alextselegidis/easyappointments","known_exclusions":[],"conditions_summary":"### Summary\nAn Excessive Data Exposure vulnerability in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users.\nUsing these hashes, an attacker can modify or delete appointments of other providers, resulting in an Appointments Takeover.\n\n### Details\nThe customers search endpoint exposes excessive information, including appointment hashes, to any authenticated user without proper authorization checks.\nThese hashes uniquely identify appointments that do not belong to the searching user.\n\nBy reusing the obtained hashes, an attacker can interact with appointment management endpoints, allowing the modification or deletion of third-party appointments.\n\nThe lack of object-level authorization controls leads to an Appointments Takeover, impacting data confidentiality and integrity.\n\n### Impact\nThis vulnerability allows an authenticated user to take control of appointments belonging to other users. By obtaining and reusing the exposed hashes, an attacker can view, modify, or delete appointments of other providers, compromising data integrity and confidentiality. This may result in unauthorized appointment cancellations or modification","public_affected_ranges":[]}],"null_published_at":"2026-11-05T03:52:54.811Z","source_updated_at":"2026-07-29T16:30:35.004Z","source_disclosed_at":"2026-07-29T16:22:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:49.673Z"},{"id":"NVI-00004877","kind":"vulnerability","title":"Easy!Appointments Vulnerable to Appointments Takeover via Excessive Data Exposure","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-4vmm-5qvc-w5p7","CVE-2026-55651"],"plain_summary":"OSV carries this publisher advisory for alextselegidis/easyappointments. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-6f6090fa2ce20724cc411f25b9c3fb63"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-24T21:10:00.130Z","value":"7.1 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-6f6090fa2ce20724cc411f25b9c3fb63"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-773347cc138d71829bf4d05c61c881de","url":"https://github.com/advisories/GHSA-4vmm-5qvc-w5p7","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-4vmm-5qvc-w5p7","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.673Z"},{"id":"sr-6f6090fa2ce20724cc411f25b9c3fb63","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55651","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55651","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:39.943Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-773347cc138d71829bf4d05c61c881de"],"technology":"alextselegidis/easyappointments","known_exclusions":[],"conditions_summary":"### Summary\nAn Excessive Data Exposure vulnerability in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users.\nUsing these hashes, an attacker can modify or delete appointments of other providers, resulting in an Appointments Takeover.\n\n### Details\nThe customers search endpoint exposes excessive information, including appointment hashes, to any authenticated user without proper authorization checks.\nThese hashes uniquely identify appointments that do not belong to the searching user.\n\nBy reusing the obtained hashes, an attacker can interact with appointment management endpoints, allowing the modification or deletion of third-party appointments.\n\nThe lack of object-level authorization controls leads to an Appointments Takeover, impacting data confidentiality and integrity.\n\n### Impact\nThis vulnerability allows an authenticated user to take control of appointments belonging to other users. By obtaining and reusing the exposed hashes, an attacker can view, modify, or delete appointments of other providers, compromising data integrity and confidentiality. This may result in unauthorized appointment cancellations or modification","public_affected_ranges":[]}],"null_published_at":"2026-11-02T20:21:10.323Z","source_updated_at":"2026-07-29T16:30:35.004Z","source_disclosed_at":"2026-07-29T16:22:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:49.673Z"},{"id":"NVI-00004877","kind":"vulnerability","title":"Easy!Appointments Vulnerable to Appointments Takeover via Excessive Data Exposure","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4vmm-5qvc-w5p7","CVE-2026-55651"],"plain_summary":"OSV carries this publisher advisory for alextselegidis/easyappointments. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-773347cc138d71829bf4d05c61c881de"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-773347cc138d71829bf4d05c61c881de","url":"https://github.com/advisories/GHSA-4vmm-5qvc-w5p7","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-4vmm-5qvc-w5p7","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.673Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-773347cc138d71829bf4d05c61c881de"],"technology":"alextselegidis/easyappointments","known_exclusions":[],"conditions_summary":"### Summary\nAn Excessive Data Exposure vulnerability in the customers search endpoint allows an authenticated user to obtain appointment hashes belonging to other users.\nUsing these hashes, an attacker can modify or delete appointments of other providers, resulting in an Appointments Takeover.\n\n### Details\nThe customers search endpoint exposes excessive information, including appointment hashes, to any authenticated user without proper authorization checks.\nThese hashes uniquely identify appointments that do not belong to the searching user.\n\nBy reusing the obtained hashes, an attacker can interact with appointment management endpoints, allowing the modification or deletion of third-party appointments.\n\nThe lack of object-level authorization controls leads to an Appointments Takeover, impacting data confidentiality and integrity.\n\n### Impact\nThis vulnerability allows an authenticated user to take control of appointments belonging to other users. By obtaining and reusing the exposed hashes, an attacker can view, modify, or delete appointments of other providers, compromising data integrity and confidentiality. This may result in unauthorized appointment cancellations or modification","public_affected_ranges":[]}],"null_published_at":"2026-10-31T22:12:57.146Z","source_updated_at":"2026-07-29T16:30:35.004Z","source_disclosed_at":"2026-07-29T16:22:17.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:41:49.673Z"}],"next_cursor":null,"snapshot_revision":"42594"}