CVE-2026-48157

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{"affected": [{"affectedData": [{"product": "Slim", "vendor": "slimphp", "versions": [{"status": "affected", "version": ">= 4.4.0, < 4.15.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Slim is a PHP micro framework that enables users to write simple web applications and APIs. In versions 4.4.0 through 4.15, if an application uses HttpException::setTitle() and/or setDescription() to include untrusted/request-derived data in the error title or description (e.g. \"No products found matching '{$query}'.\"), an attacker could inject arbitrary HTML/JavaScript that executes in the victim's browser when they encounter an HTML error page generated by Slim. The vulnerability is present even with displayErrorDetails = false as the unescaped title and description are rendered on this error path. Built-in exceptions (HttpNotFoundException, HttpBadRequestException, etc.) ship plain-text defaults, so a vanilla Slim app with no user code is not exploitable. Only applications that feed untrusted data into setTitle() and/or setDescription() are affected. The issue has been fixed in 4.15.2. If developers are unable to immediately update their applications, they can work around this issue by avoiding passing untrusted/request-derived data into HttpException::setTitle() and setDescription() and using static, plain-text error copy instead.\nThey should also register a custom error renderer (an ErrorRendererInterface implementation, or a subclass of HtmlErrorRenderer that escapes the title and description) for the HTML media type."}, {"lang": "es", "value": "Slim es un micro framework de PHP que permite a los usuarios escribir aplicaciones web y APIs sencillas. En las versiones 4.4.0 a 4.15, si una aplicaci\u00f3n utiliza HttpException::setTitle() y/o setDescription() para incluir datos no confiables/derivados de la solicitud en el t\u00edtulo o la descripci\u00f3n del error (por ejemplo, \u2019No se encontraron productos que coincidan con \u2019{$query}\u2019.\u2019), un atacante podr\u00eda inyectar HTML/JavaScript arbitrario que se ejecuta en el navegador de la v\u00edctima cuando esta encuentra una p\u00e1gina de error HTML generada por Slim. La vulnerabilidad est\u00e1 presente incluso con displayErrorDetails = false, ya que el t\u00edtulo y la descripci\u00f3n sin escapar se renderizan en esta ruta de error. Las excepciones integradas (HttpNotFoundException, HttpBadRequestException, etc.) vienen con valores predeterminados de texto plano, por lo que una aplicaci\u00f3n Slim \u2019vainilla\u2019 sin c\u00f3digo de usuario no es explotable. Solo las aplicaciones que introducen datos no confiables en setTitle() y/o setDescription() se ven afectadas. El problema ha sido solucionado en la versi\u00f3n 4.15.2. Si los desarrolladores no pueden actualizar sus aplicaciones de inmediato, pueden solucionar este problema evitando pasar datos no confiables/derivados de la solicitud a HttpException::setTitle() y setDescription() y utilizando en su lugar una copia de error est\u00e1tica de texto plano. Tambi\u00e9n deber\u00edan registrar un renderizador de errores personalizado (una implementaci\u00f3n de ErrorRendererInterface, o una subclase de HtmlErrorRenderer que escape el t\u00edtulo y la descripci\u00f3n) para el tipo de medio HTML."}], "id": "CVE-2026-48157", "lastModified": "2026-10-25T23:10:00.167", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.1, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-48157", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-16T12:21:29.106141Z", "version": "2.0.3"}}]}, "published": "2026-06-15T22:16:17.090", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/slimphp/Slim/releases/tag/4.15.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/slimphp/Slim/security/advisories/GHSA-53h4-8rc4-f539"}], "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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