CVE-2023-23621

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"matchCriteriaId": "3F85AFD4-D397-4FDB-B762-521BD5FF14C1", "vulnerable": true}, {"criteria": "cpe:2.3:a:discourse:discourse:3.0.0:beta16:*:*:beta:*:*:*", "matchCriteriaId": "D40CDCE1-3462-4D6C-A3C7-487F175264CA", "vulnerable": true}, {"criteria": "cpe:2.3:a:discourse:discourse:3.1.0:beta1:*:*:beta:*:*:*", "matchCriteriaId": "B9BBED17-A6BA-4F17-8814-8D8521F28375", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches, a malicious user can cause a regular expression denial of service using a carefully crafted user agent. This issue is patched in version 3.0.1 on the `stable` branch and version 3.1.0.beta2 on the `beta` and `tests-passed` branches. There are no known workarounds."}, {"lang": "es", "value": "Discourse es una plataforma de discusi\u00f3n de c\u00f3digo abierto. Antes de la versi\u00f3n 3.0.1 en la rama \"stable\" y la versi\u00f3n 3.1.0.beta2 en las ramas \"beta\" y \"tests-passed\", un usuario malintencionado pod\u00eda provocar una denegaci\u00f3n de servicio de expresi\u00f3n regular utilizando un agente de usuario cuidadosamente manipulado. Este problema se solucion\u00f3 en la versi\u00f3n 3.0.1 en la rama \"stable\" y en la versi\u00f3n 3.1.0.beta2 en las ramas \"beta\" y \"tests-passed\". No se conocen workarounds."}], "id": "CVE-2023-23621", "lastModified": "2026-06-17T05:37:36.250", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.6, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-23621", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2025-03-10T20:59:22.489717Z", "version": "2.0.3"}}]}, "published": "2023-01-28T00:15:09.373", "references": [{"source": "security-advisories@github.com", "tags": ["Patch"], "url": "https://github.com/discourse/discourse/commit/6d92c3cbdac431db99a450f360a3048bb3aaf458"}, {"source": "security-advisories@github.com", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/discourse/discourse/pull/20002"}, {"source": "security-advisories@github.com", "tags": ["Third Party Advisory"], "url": "https://github.com/discourse/discourse/security/advisories/GHSA-mrfp-54hf-jrcv"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://github.com/discourse/discourse/commit/6d92c3cbdac431db99a450f360a3048bb3aaf458"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/discourse/discourse/pull/20002"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/discourse/discourse/security/advisories/GHSA-mrfp-54hf-jrcv"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1333"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-1333"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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