CVE-2023-43659

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{"affected": [{"affectedData": [{"product": "discourse", "vendor": "discourse", "versions": [{"status": "affected", "version": "stable <= 3.1.1"}, {"status": "affected", "version": "beta <= 3.2.0.beta1"}]}], "source": "security-advisories@github.com"}, {"affectedData": [{"cpes": ["cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"], "defaultStatus": "unknown", "product": "discourse", "vendor": "discourse", "versions": [{"lessThanOrEqual": "3.1.1", "status": "affected", "version": "stable", "versionType": "custom"}, {"lessThanOrEqual": "3.2.0.beta1", "status": "affected", "version": "beta", "versionType": "custom"}]}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*", "matchCriteriaId": "6AC25048-A9DA-4EB4-A05B-33B6348539CA", "versionEndIncluding": "3.1.1", "vulnerable": true}, {"criteria": "cpe:2.3:a:discourse:discourse:3.2.0:beta1:*:*:beta:*:*:*", "matchCriteriaId": "1BFF647B-6CEF-43BF-BF5E-C82B557F78E2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Discourse is an open source platform for community discussion. Improper escaping of user input allowed for Cross-site Scripting attacks via the digest email preview UI. This issue only affects sites with CSP disabled. This issue has been patched in the 3.1.1 stable release as well as the 3.2.0.beta1 release. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum.\n"}, {"lang": "es", "value": "Discourse es una plataforma de c\u00f3digo abierto para el debate comunitario. El escape inadecuado de la entrada del usuario permiti\u00f3 ataques de Cross-Site Scripting a trav\u00e9s de la interfaz de usuario de vista previa del resumen del correo electr\u00f3nico. Este problema s\u00f3lo afecta a sitios con CSP deshabilitado. Este problema se solucion\u00f3 en la versi\u00f3n 3.1.1 stable y en la versi\u00f3n 3.2.0.beta1. Se recomienda a los usuarios que actualicen. Los usuarios que no puedan actualizar deben asegurarse de que CSP est\u00e9 habilitado en el foro."}], "id": "CVE-2023-43659", "lastModified": "2026-06-17T06:26:10.490", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.9, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-43659", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2024-09-16T15:22:33.825905Z", "version": "2.0.3"}}]}, "published": "2023-10-16T22:15:12.237", "references": [{"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP"}, {"source": "security-advisories@github.com", "tags": ["Vendor Advisory"], "url": "https://github.com/discourse/discourse/security/advisories/GHSA-g4qg-5q2h-m8ph"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://github.com/discourse/discourse/security/advisories/GHSA-g4qg-5q2h-m8ph"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

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