CVE-2026-41235

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{"affected": [{"affectedData": [{"product": "froxlor", "vendor": "froxlor", "versions": [{"status": "affected", "version": "= 2.3.6"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Froxlor is open source server administration software. Version 2.3.6 lets administrators configure `system.available_shells` as the approved shell list that customers may assign to FTP users. However, the server-side FTP account handlers do not enforce that whitelist when processing add or edit requests. As a result, an authenticated customer with shell delegation enabled can submit an arbitrary shell such as `/bin/bash` even when the panel UI only offers more restricted choices. In deployments that use the default `nssextrausers` integration, the attacker-controlled shell is then propagated into the system account database, leading to real host shell access. Version 2.3.7 fixes the issue."}, {"lang": "es", "value": "Froxlor es un software de administraci\u00f3n de servidores de c\u00f3digo abierto. La versi\u00f3n 2.3.6 permite a los administradores configurar 'system.available_shells' como la lista de shells aprobados que los clientes pueden asignar a los usuarios de FTP. Sin embargo, los manejadores de cuentas FTP del lado del servidor no aplican esa lista blanca al procesar solicitudes de adici\u00f3n o edici\u00f3n. Como resultado, un cliente autenticado con delegaci\u00f3n de shell habilitada puede enviar un shell arbitrario como '/bin/bash' incluso cuando la interfaz de usuario del panel solo ofrece opciones m\u00e1s restringidas. En implementaciones que utilizan la integraci\u00f3n predeterminada de 'nssextrausers', el shell controlado por el atacante se propaga entonces a la base de datos de cuentas del sistema, lo que lleva a un acceso real al shell del host. La versi\u00f3n 2.3.7 corrige el problema."}], "id": "CVE-2026-41235", "lastModified": "2026-07-22T20:10:00.127", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "PROOF_OF_CONCEPT", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-41235", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-08T18:29:06.216963Z", "version": "2.0.3"}}]}, "published": "2026-06-04T19:16:29.153", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/froxlor/froxlor/releases/tag/2.3.7"}, {"source": "security-advisories@github.com", "url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-gcv3-5v9q-fmhh"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/froxlor/froxlor/security/advisories/GHSA-gcv3-5v9q-fmhh"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.3.6"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "froxlor", "source": "cna", "vendor": "froxlor"}, "product": "froxlor", "vendor": "froxlor"}], "created": "2026-06-04T19:30:21.817667+00:00", "updated": "2026-06-04T20:30:15.692424+00:00", "vendors": ["froxlor", "froxlor$PRODUCT$froxlor"]}