{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-59234", "assignerOrgId": "4daa8cea-433a-44bd-9456-53b127fc289a", "state": "PUBLISHED", "assignerShortName": "Secur0", "dateReserved": "2026-07-03T11:24:39.241Z", "datePublished": "2026-07-03T12:47:38.445Z", "dateUpdated": "2026-07-03T12:47:38.445Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "4daa8cea-433a-44bd-9456-53b127fc289a", "shortName": "Secur0", "dateUpdated": "2026-07-03T12:47:38.445Z"}, "title": "Authorization Bypass Through User-Controlled Key in Prospero Flow CRM calendar event deletion", "datePublic": "2026-07-02T22:00:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-639", "description": "CWE-639 Authorization Bypass Through User-Controlled Key", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-77", "descriptions": [{"lang": "en", "value": "CAPEC-77 Manipulating User-Controlled Variables"}]}], "affected": [{"vendor": "Roskus", "product": "Prospero Flow CRM", "collectionURL": "https://github.com/Roskus/prospero-flow-crm", "repo": "https://github.com/Roskus/prospero-flow-crm", "programFiles": ["app/Http/Controllers/Calendar/CalendarDeleteEventController.php"], "versions": [{"status": "affected", "version": "1.0.0", "lessThan": "5.5.3", "versionType": "semver"}], "defaultStatus": "unaffected", "cpes": ["cpe:2.3:a:roskus:prospero_flow_crm:*:*:*:*:*:*:*:*"]}], "cpeApplicability": [{"operator": "OR", "nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:roskus:prospero_flow_crm:*:*:*:*:*:*:*:*", "versionStartIncluding": "1.0.0", "versionEndExcluding": "5.5.3"}]}]}], "descriptions": [{"lang": "en", "value": "Authorization Bypass Through User-Controlled Key (CWE-639) in CalendarDeleteEventController (app/Http/Controllers/Calendar/CalendarDeleteEventController.php), exposed at GET /calendar/event/delete/{id}, in Prospero Flow CRM before 5.5.3 allows a remote, authenticated attacker to delete arbitrary calendar events belonging to other users by manipulating the {id} path parameter, because the delete handler resolves the record with Calendar::find($id)->delete() and performs no ownership check (no user_id/company_id scoping) before deletion. This results in unauthorized destruction of other users' calendar events across the platform.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "<p>Authorization Bypass Through User-Controlled Key (CWE-639) in CalendarDeleteEventController (app/Http/Controllers/Calendar/CalendarDeleteEventController.php), exposed at GET /calendar/event/delete/{id}, in Prospero Flow CRM before 5.5.3 allows a remote, authenticated attacker to delete arbitrary calendar events belonging to other users by manipulating the {id} path parameter, because the delete handler resolves the record with Calendar::find($id)-&gt;delete() and performs no ownership check (no user_id/company_id scoping) before deletion. This results in unauthorized destruction of other users' calendar events across the platform.</p>"}]}], "tags": ["x_open-source"], "references": [{"url": "https://github.com/Roskus/prospero-flow-crm/commit/8c26eed4d80544c30e55448e12a8e999af6d2b70", "name": "Fix commit 8c26eed4 - add user_id ownership check before delete", "tags": ["patch"]}, {"url": "https://github.com/Roskus/prospero-flow-crm/releases/tag/v5.5.3", "name": "Release v5.5.3 (fixed version)", "tags": ["release-notes"]}, {"url": "https://secur0.com/en/cna/cve-list/cve-2026-59234-idor-in-prospero-flow-crm-allows-deletion-of-other-users-calendar-events", "tags": ["related"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "subIntegrityImpact": "NONE", "vulnAvailabilityImpact": "LOW", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "MEDIUM", "baseScore": 6.9, "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"}}], "solutions": [{"lang": "en", "value": "Upgrade to version 5.5.3 or higher.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Upgrade to version 5.5.3 or higher."}]}], "credits": [{"lang": "en", "value": "Robert Mihaila", "type": "finder"}, {"lang": "en", "value": "Amirreza Fadaeizadeh Bidari", "type": "finder"}, {"lang": "en", "value": "Xoan M. Otero Jorge", "type": "analyst"}, {"lang": "en", "value": "Secur0 CNA", "type": "coordinator"}, {"lang": "en", "value": "Gustavo Novaro", "type": "remediation developer"}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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