CVE-2025-32391

{"id": "CVE-2025-32391", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 1.2}]}, "published": "2025-04-10T14:15:29.290", "references": [{"url": "https://github.com/hedgedoc/hedgedoc/commit/0636b5c20b7097afccfa6641830352ad068ef964", "source": "security-advisories@github.com"}, {"url": "https://github.com/hedgedoc/hedgedoc/commit/3f520ea59abf912c66d7443cb99f29a567c47748", "source": "security-advisories@github.com"}, {"url": "https://github.com/hedgedoc/hedgedoc/commit/d2585fbd3b398b3359f6f88aa1fda8f4ecf2f78d", "source": "security-advisories@github.com"}, {"url": "https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-3983-rrqh-mvx5", "source": "security-advisories@github.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "HedgeDoc is an open source, real-time, collaborative, markdown notes application. Prior to 1.10.3, a malicious SVG file uploaded to HedgeDoc results in the possibility of XSS when opened in a new tab instead of the editor itself. The XSS is possible by exploiting the JSONP capabilities of GitHub Gist embeddings. Only instances with the local filesystem upload backend or special configurations, where the uploads are served from the same domain as HedgeDoc, are vulnerable. This vulnerability is fixed in 1.10.3. When upgrading to HedgeDoc 1.10.3 is not possible, instance owners could add the following headers for all routes under /uploads as a first-countermeasure: Content-Disposition: attachment and Content-Security-Policy: default-src 'none'. Additionally, the external URLs in the script-src attribute of the Content-Security-Policy header should be removed."}, {"lang": "es", "value": " HedgeDoc es una aplicaci\u00f3n de notas de rebajas, colaborativa y en tiempo real, de c\u00f3digo abierto. Antes de la versi\u00f3n 1.10.3, un archivo SVG malicioso cargado en HedgeDoc generaba la posibilidad de un XSS cuando se abr\u00eda en una nueva pesta\u00f1a en lugar de en el editor mismo. El XSS es posible aprovechando las capacidades JSONP de las incrustaciones de GitHub Gist. Solo las instancias con el backend de carga del sistema de archivos local o configuraciones especiales, donde las cargas se sirven desde el mismo dominio que HedgeDoc, son vulnerables. Esta vulnerabilidad se corrigi\u00f3 en 1.10.3. Cuando no es posible actualizar a HedgeDoc 1.10.3, los propietarios de instancias podr\u00edan agregar los siguientes encabezados para todas las rutas bajo /uploads como primera contramedida: Content-Disposition: attachment y Content-Security-Policy: default-src 'none'. Adem\u00e1s, se deben eliminar las URL externas en el atributo script-src del encabezado Content-Security-Policy."}], "lastModified": "2025-04-11T15:39:52.920", "sourceIdentifier": "security-advisories@github.com"}