CVE-2026-27636

{"id": "CVE-2026-27636", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27636", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-02-25T15:25:18.635184Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "freescout-help-desk", "product": "freescout", "versions": [{"status": "affected", "version": "< 1.8.206"}]}]}], "published": "2026-02-25T04:16:03.933", "references": [{"url": "https://github.com/freescout-help-desk/freescout/commit/9984071e6f1b4e633fdcffcea82bbebc9c1e009c", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9", "tags": ["Not Applicable"], "source": "security-advisories@github.com"}, {"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-6gcm-v8xf-j9v9", "tags": ["Not Applicable"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}, {"url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-mw88-x7j3-74vc", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-434"}]}], "descriptions": [{"lang": "en", "value": "FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.206, FreeScout's file upload restriction list in `app/Misc/Helper.php` does not include `.htaccess` or `.user.ini` files. On Apache servers with `AllowOverride All` (a common configuration), an authenticated user can upload a `.htaccess` file to redefine how files are processed, enabling Remote Code Execution. This vulnerability can be exploited on its own or in combination with CVE-2026-27637. Version 1.8.206 fixes both vulnerabilities."}, {"lang": "es", "value": "FreeScout es un servicio de asistencia t\u00e9cnica gratuito y un buz\u00f3n compartido creado con el marco Laravel de PHP. Antes de la versi\u00f3n 1.8.206, la lista de restricci\u00f3n de carga de archivos de FreeScout en 'app/Misc/Helper.php' no incluye archivos '.htaccess' o '.user.ini'. En servidores Apache con 'AllowOverride All' (una configuraci\u00f3n com\u00fan), un usuario autenticado puede cargar un archivo '.htaccess' para redefinir c\u00f3mo se procesan los archivos, habilitando la Ejecuci\u00f3n Remota de C\u00f3digo. Esta vulnerabilidad puede ser explotada por s\u00ed misma o en combinaci\u00f3n con CVE-2026-27637. La versi\u00f3n 1.8.206 corrige ambas vulnerabilidades."}], "lastModified": "2026-06-17T10:27:25.980", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:freescout:freescout:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "79CA8F5D-FF18-4F10-A6AF-3DBED9542088", "versionEndExcluding": "1.8.206"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}