CVE-2026-34234

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{"affected": [{"affectedData": [{"product": "panel", "vendor": "Ctrlpanel-gg", "versions": [{"status": "affected", "version": "< 1.2.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "CtrlPanel is open-source billing software for hosting providers. In versions 1.1.1 and prior, the web-based installer (public/installer/index.php) is vulnerable to unauthenticated Remote Code Execution (RCE) because it performs the install.lock check only after including and executing form handler files, leaving installer endpoints reachable on already-installed instances. The handlers also pass unsanitized user input directly into shell commands, allowing an attacker to submit crafted requests that execute arbitrary commands on the server. The vulnerability stems from two combined weaknesses: (1) premature form handler execution before the lock file gate, and (2) unsafe use of user input in shell command construction. This issue is reported to be actively exploited in the wild. The issue has been fixed in version 1.2.0."}, {"lang": "es", "value": "CtrlPanel es un software de facturaci\u00f3n de c\u00f3digo abierto para proveedores de alojamiento. En las versiones 1.1.1 y anteriores, el instalador basado en web (public/installer/index.php) es vulnerable a la ejecuci\u00f3n remota de c\u00f3digo (RCE) no autenticada porque realiza la comprobaci\u00f3n de install.lock solo despu\u00e9s de incluir y ejecutar los archivos del gestor de formularios, dejando los puntos finales del instalador accesibles en instancias ya instaladas. Los gestores tambi\u00e9n pasan la entrada de usuario no saneada directamente a comandos de shell, permitiendo a un atacante enviar solicitudes manipuladas que ejecutan comandos arbitrarios en el servidor. La vulnerabilidad se deriva de dos debilidades combinadas: (1) ejecuci\u00f3n prematura del gestor de formularios antes de la puerta del archivo de bloqueo, y (2) uso inseguro de la entrada de usuario en la construcci\u00f3n de comandos de shell. Se informa que este problema est\u00e1 siendo explotado activamente en la naturaleza. El problema ha sido solucionado en la versi\u00f3n 1.2.0."}], "id": "CVE-2026-34234", "lastModified": "2026-07-24T09:10:00.153", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 10.0, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34234", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-20T14:36:22.022819Z", "version": "2.0.3"}}]}, "published": "2026-05-19T22:16:37.123", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/Ctrlpanel-gg/panel/releases/tag/1.2.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/Ctrlpanel-gg/panel/security/advisories/GHSA-jmhr-q9q5-fqwh"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/Ctrlpanel-gg/panel/security/advisories/GHSA-jmhr-q9q5-fqwh"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}, {"lang": "en", "value": "CWE-284"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.2.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "panel", "source": "cna", "vendor": "Ctrlpanel-gg"}, "product": "panel", "vendor": "ctrlpanel-gg"}], "created": "2026-05-19T22:30:15.622332+00:00", "updated": "2026-10-25T18:00:12.909493+00:00", "vendors": ["ctrlpanel-gg", "ctrlpanel-gg$PRODUCT$panel"]}