CVE-2026-27964

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{"affected": [{"affectedData": [{"product": "facturascripts", "vendor": "NeoRazorX", "versions": [{"status": "affected", "version": "< 2025.8"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "FacturaScripts is an open source accounting and invoicing software. Versions 2025.7 and prior contain a Reflected Cross-Site Scripting (XSS) vulnerability through the fsNick cookie parameter. The application reflects the cookie's value directly into the HTML without sanitization. The fsNick cookie is rendered into the DOM without encoding. While the server does reject the modified session and forces a logout, the HTML containing the payload reaches the browser first. This lets the script execute immediately upon load, effectively beating the redirect. This issue has been fixed in version 2025.8."}, {"lang": "es", "value": "FacturaScripts es un software de contabilidad y facturaci\u00f3n de c\u00f3digo abierto. Las versiones 2025.7 y anteriores contienen una vulnerabilidad de cross-site scripting (XSS) reflejado a trav\u00e9s del par\u00e1metro de cookie fsNick. La aplicaci\u00f3n refleja el valor de la cookie directamente en el HTML sin sanitizaci\u00f3n. La cookie fsNick se renderiza en el DOM sin codificaci\u00f3n. Aunque el servidor rechaza la sesi\u00f3n modificada y fuerza un cierre de sesi\u00f3n, el HTML que contiene la carga \u00fatil llega primero al navegador. Esto permite que el script se ejecute inmediatamente al cargar, superando eficazmente la redirecci\u00f3n. Este problema ha sido solucionado en la versi\u00f3n 2025.8."}], "id": "CVE-2026-27964", "lastModified": "2026-07-24T13:10:00.223", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 3.9, "baseSeverity": "LOW", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.3, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27964", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-05-19T13:00:46.326432Z", "version": "2.0.3"}}]}, "published": "2026-05-18T22:16:38.703", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/NeoRazorX/facturascripts/commit/9066e10326029adf012114e27eb5f3f33f78ecfd"}, {"source": "security-advisories@github.com", "url": "https://github.com/NeoRazorX/facturascripts/security/advisories/GHSA-gq5c-rw37-g46c"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/NeoRazorX/facturascripts/security/advisories/GHSA-gq5c-rw37-g46c"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

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