CVE-2025-31493

{"id": "CVE-2025-31493", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.1, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 3.9}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 6.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "LOW", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2025-05-13T16:15:30.093", "references": [{"url": "https://github.com/getkirby/kirby/releases/tag/3.10.1.2", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/getkirby/kirby/releases/tag/3.9.8.3", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/getkirby/kirby/releases/tag/4.7.1", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/getkirby/kirby/security/advisories/GHSA-x275-h9j4-7p4h", "tags": ["Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}, {"lang": "en", "value": "CWE-23"}]}], "descriptions": [{"lang": "en", "value": "Kirby is an open-source content management system. A vulnerability in versions prior to 3.9.8.3, 3.10.1.2, and 4.7.1 affects all Kirby sites that use the `collection()` helper or `$kirby->collection()` method with a dynamic collection name (such as a collection name that depends on request or user data). Sites that only use fixed calls to the `collection()` helper/`$kirby->collection()` method (i.e. calls with a simple string for the collection name) are *not* affected. A missing path traversal check allowed attackers to navigate and access all files on the server that were accessible to the PHP process, including files outside of the collections root or even outside of the Kirby installation. PHP code within such files was executed. Such attacks first require an attack vector in the site code that is caused by dynamic collection names, such as `collection('tags-' . get('tags'))`. It generally also requires knowledge of the site structure and the server's file system by the attacker, although it can be possible to find vulnerable setups through automated methods such as fuzzing. In a vulnerable setup, this could cause damage to the confidentiality and integrity of the server. The problem has been patched in Kirby 3.9.8.3, Kirby 3.10.1.2, and Kirby 4.7.1. In all of the mentioned releases, the maintainers of Kirby have added a check for the collection path that ensures that the resulting path is contained within the configured collections root. Collection paths that point outside of the collections root will not be loaded."}, {"lang": "es", "value": "Kirby es un sistema de gesti\u00f3n de contenido de c\u00f3digo abierto. Una vulnerabilidad en versiones anteriores a 3.9.8.3, 3.10.1.2 y 4.7.1 afecta a todos los sitios de Kirby que usan el asistente `collection()` o el m\u00e9todo `$kirby->collection()` con un nombre de colecci\u00f3n din\u00e1mico (como un nombre de colecci\u00f3n que depende de la solicitud o los datos del usuario). Los sitios que solo usan llamadas fijas al asistente `collection()`/m\u00e9todo `$kirby->collection()` (es decir, llamadas con una cadena simple para el nombre de la colecci\u00f3n) *no* se ven afectados. La falta de una comprobaci\u00f3n de path traversal permiti\u00f3 a los atacantes navegar y acceder a todos los archivos en el servidor a los que ten\u00eda acceso el proceso PHP, incluyendo archivos fuera del root de las colecciones o incluso fuera de la instalaci\u00f3n de Kirby. Se ejecut\u00f3 el c\u00f3digo PHP dentro de dichos archivos. Dichos ataques primero requieren un vector de ataque en el c\u00f3digo del sitio que es causado por nombres de colecciones din\u00e1micos, como `collection('tags-' . get('tags'))`. Generalmente, tambi\u00e9n requiere que el atacante conozca la estructura del sitio y el sistema de archivos del servidor, aunque es posible encontrar configuraciones vulnerables mediante m\u00e9todos automatizados como el fuzzing. En una configuraci\u00f3n vulnerable, esto podr\u00eda da\u00f1ar la confidencialidad e integridad del servidor. El problema se ha corregido en Kirby 3.9.8.3, Kirby 3.10.1.2 y Kirby 4.7.1. En todas las versiones mencionadas, los desarrolladores de Kirby han a\u00f1adido una comprobaci\u00f3n de la ruta de la colecci\u00f3n que garantiza que la ruta resultante est\u00e9 dentro del root de las colecciones configurada. Las rutas de colecci\u00f3n que apunten fuera del root de las colecciones no se cargar\u00e1n."}], "lastModified": "2025-08-26T14:33:24.970", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D805FEF9-99CA-4AA8-B7A2-E55F8B6CF633", "versionEndExcluding": "3.9.8.3"}, {"criteria": "cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B32EEBCF-2673-485B-9B5D-002D258315CD", "versionEndExcluding": "3.10.1.2", "versionStartIncluding": "3.10.0"}, {"criteria": "cpe:2.3:a:getkirby:kirby:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "22B812FA-29DC-4CE0-9E49-6AC09BA4087D", "versionEndExcluding": "4.7.1", "versionStartIncluding": "4.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}