{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48085", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-20T18:40:45.832Z", "datePublished": "2026-08-06T21:29:00.382Z", "dateUpdated": "2026-08-07T15:39:38.560Z"}, "containers": {"cna": {"title": "OpenReception has unauthenticated GLOBAL_ADMIN account creation post-bootstrap", "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "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:H", "version": "3.1"}}], "references": [{"name": "https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-qvvq-hhpj-64rp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-qvvq-hhpj-64rp"}, {"name": "https://github.com/open-reception/appointment-booking-software/commit/222408af6fd4bd85554a25ec8de8131bd0733797", "tags": ["x_refsource_MISC"], "url": "https://github.com/open-reception/appointment-booking-software/commit/222408af6fd4bd85554a25ec8de8131bd0733797"}], "affected": [{"vendor": "open-reception", "product": "appointment-booking-software", "versions": [{"version": "< 1.0.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-06T21:29:00.382Z"}, "descriptions": [{"lang": "en", "value": "OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.1, a fully provisioned OpenReception instance accepts unauthenticated POST requests to `/setup/create-admin-account` and creates additional GLOBAL_ADMIN accounts without verifying that an admin already exists. Any unauthenticated network attacker who can submit a same-origin form POST gains full platform-level administrative control. The newly created account is `is_active=true` with `confirmation_state=ACCESS_GRANTED` and does not require completing email confirmation; the GLOBAL_ADMIN row is created active and immediately usable. Login and tenant enumeration succeed without any further interaction. This is distinct from the deployment race condition already documented on the `Claiming an instance` page. That documented race covers the window between deployment and first claim. The bug reported here works after the operator has properly claimed and configured the instance: the layout-level guard that protects the setup page only redirects on GET, while the `default` form action handler creates the user without rechecking `adminExists()`. Three GLOBAL_ADMIN accounts were created in succession during testing, with no rate limiting observed. Audit-specific event logging beyond standard application logs was not assessed; the standard `[error]` line that surfaces only when a uniqueness conflict is hit is not the same as a security event for \"additional admin created post-claim\". The form post is rejected for browser drive-by CSRF by SvelteKit's built-in same-origin check, but any tool that supplies a matching `Origin` header (curl, Burp, automated scanners, server-side proxies) bypasses this trivially. No additional preconditions exist. Users should upgrade to version 1.0.1 to receive a patch."}], "source": {"advisory": "GHSA-qvvq-hhpj-64rp", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-qvvq-hhpj-64rp", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-07T15:37:56.257398Z", "id": "CVE-2026-48085", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-07T15:39:38.560Z"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.0.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "appointment-booking-software", "source": "cna", "vendor": "open-reception"}, "product": "appointment-booking-software", "vendor": "open-reception"}], "created": "2026-08-07T00:30:06.734232+00:00", "updated": "2026-08-07T09:58:50.894030+00:00", "vendors": ["open-reception", "open-reception$PRODUCT$appointment-booking-software"]}