{"id":"CVE-2026-100163","revision":null,"records":[{"revision":"dafbf676f22d478aad8ffa595c22c240","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100163","aliases":[],"title":"Appointment Booking Plugin <= 5.7.2 - Unauthenticated Authentication Bypass to Customer Account Takeover via Insufficient Verification in create_wp_user_for_customer() username_exists Fallback","description":"The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.7.2 via the OsCustomerHelper::create_wp_user_for_customer() helper reached from the public process_step_customer() booking step. When the 'Use WordPress users as customers' option is enabled, the helper falls back from email_exists() to username_exists( $customer->email ), which matches any WordPress user whose user_login equals the victim customer's email even when that user's user_email is completely different, and links that WordPress user's ID into the victim's LatePoint customer row (only privileged roles are excluded; Subscriber is allowed). This makes it possible for authenticated attackers, with Subscriber-level access and above, to take over another customer's LatePoint account — accessing their bookings, service, agent, and calendar data, and having the victim customer's email overwritten with the attacker's on next login — by holding a Subscriber account whose user_login equals the victim's email and submitting an unauthenticated public booking step registration request.","state":0,"publishedAt":"2026-10-14T07:43:31.547+00:00","modifiedAt":"2026-10-14T17:41:31.054+00:00","affected":[{"ecosystem":"Vendor product","name":"Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"latepoint\",\n                    \"product\": \"Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"lessThanOrEqual\": \"5.7.2\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4,"severity":"HIGH"}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/2a942d71-7172-4e02-9faa-3a2c1c9e7fbd?source=cve","https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/lib/helpers/customer_helper.php#L259","https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/lib/helpers/customer_helper.php#L274","https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/lib/helpers/steps_helper.php#L2156","https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/lib/helpers/steps_helper.php#L2146","https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.2/latepoint.php#L1072","https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.3/lib/helpers/customer_helper.php"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100163","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100163","identifiers":["CVE-2026-100163"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-10T02:02:16.7426948+00:00","complete":true,"records":1773,"lastAttemptAt":"2026-11-10T02:02:16.7426948+00:00","lastSuccessAt":"2026-11-10T02:02:16.8834841+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.8834842+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-8859cf40d4337e24bd2f258cc7778fbad01bb24c79d057aaf34cf1dfc6f8917d-3682c03b9a65aeeb7a6398250677204fe1fddf168002894b8519e9831c9838b3","complete":true,"records":421860,"lastAttemptAt":"2026-11-10T02:02:16.0380672+00:00","lastSuccessAt":"2026-11-10T02:02:15.9983406+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.0380672+00:00","snapshotPublishedAt":"2026-11-10T01:19:15+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-a6e5d0a60c6142e0b3b6497e33f5b12d","complete":false,"records":13689,"lastAttemptAt":"2026-11-10T02:12:12.755406+00:00","lastSuccessAt":"2026-11-10T02:12:12.8147183+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:12:12.8147183+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-10T02:02:16.7426948+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T02:02:16.7426948+00:00","lastSuccessAt":"2026-11-10T02:02:16.8841913+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.8841914+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-af04f5d48dbb47d2bc2540f8606c2614","complete":false,"records":13695,"lastAttemptAt":"2026-11-10T02:02:42.0606224+00:00","lastSuccessAt":"2026-11-10T02:02:42.058+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:42.058+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13704,"expectedIdentifiers":13742,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-cdffb4589856378aa42e8d1bd4a6c74e27a180d8160bf764c44715ef760f0a62","complete":true,"records":9932,"lastAttemptAt":"2026-11-10T02:02:16.6874003+00:00","lastSuccessAt":"2026-11-10T00:04:19.8260565+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.6874003+00:00","snapshotPublishedAt":"2026-11-09T23:48:01+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-26503967ae4379db8f374089589d6e03fb15bd31f820c9e992aaf93840c2236c","complete":true,"records":1971,"lastAttemptAt":"2026-11-10T02:02:16.1998498+00:00","lastSuccessAt":"2026-11-09T21:02:20.472473+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.1998498+00:00","snapshotPublishedAt":"2026-11-09T20:18:18+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-761ecc9061239b0da572dc9254c6f384c1d19339eb08408c436647a2f26129e9","complete":true,"records":3064,"lastAttemptAt":"2026-11-10T02:02:16.7001987+00:00","lastSuccessAt":"2026-11-09T17:05:03.4044794+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.7001987+00:00","snapshotPublishedAt":"2026-11-09T16:33:20+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-de491e92084daab7829a905b7af7daf62c5cba9f53efe3052c21cec43e90d59a","complete":true,"records":231581,"lastAttemptAt":"2026-11-10T02:02:16.5833779+00:00","lastSuccessAt":"2026-11-10T01:13:21.102106+00:00","error":null,"lastVerifiedAt":"2026-11-10T02:02:16.5833779+00:00","snapshotPublishedAt":"2026-11-10T00:48:12+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}