CVE-2026-110653

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Appointment Booking Plugin \u2013 LatePoint | Calendar & Scheduling for WordPress", "vendor": "latepoint", "versions": [{"lessThanOrEqual": "5.7.4", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "The Appointment Booking Plugin \u2013 LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Authentication Bypass via Race Condition in all versions up to, and including, 5.7.4. This is due to a non-atomic read-modify-write on the OTP verification attempts counter in the `verifyOTP` function: the counter is incremented using a stale in-memory value with no conditional `WHERE attempts < 10` guard on the `UPDATE` and no `SELECT ... FOR UPDATE` row lock, creating a TOCTOU window that allows concurrent requests to bypass the 10-attempt lockout. This makes it possible for unauthenticated attackers \u2014 who know a target customer's registered email address or phone number \u2014 to fire concurrent requests to the `auth__verify_otp` endpoint, defeat the lockout cap, brute-force the 6-digit OTP code, and authenticate as the targeted LatePoint customer, gaining full access to their account, bookings, and personal data. The nonce check present on the endpoint (`otp_verify_otp_nonce`) does not mitigate this issue, as the nonce is publicly emitted by the unauthenticated `request_otp` and `resend_otp` endpoints and is trivially obtainable by any unauthenticated attacker prior to launching the race."}], "id": "CVE-2026-110653", "lastModified": "2026-10-19T15:16:45.150", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "security@wordfence.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-110653", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-10-18T11:09:42.337028Z", "version": "2.0.3"}}]}, "published": "2026-10-17T03:16:28.480", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/controllers/auth_controller.php#L14"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/controllers/auth_controller.php#L30"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/helpers/otp_helper.php#L185"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/helpers/otp_helper.php#L228"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.4/lib/models/model.php#L773"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/latepoint/tags/5.7.5/lib/helpers/otp_helper.php"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/61fbc1dd-06c9-409b-8cad-3f350b38dfc3?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

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