{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-11T08:39:26.792","vulnerabilities":[{"cve":{"id":"CVE-2023-39954","sourceIdentifier":"security-advisories@github.com","published":"2023-08-10T15:15:09.693","lastModified":"2024-11-21T08:16:06.523","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"user_oidc provides the OIDC connect user backend for Nextcloud, an open-source cloud platform. Starting in version 1.0.0 and prior to version 1.3.3, an attacker that obtained at least read access to a snapshot of the database can impersonate the Nextcloud server towards linked servers. user_oidc 1.3.3 contains a patch. No known workarounds are available."},{"lang":"es","value":"user_oidc proporciona el backend de usuario de conexión OIDC para Nextcloud, una plataforma en la nube de código abierto. A partir de la versión 1.0.0 y antes de la versión 1.3.3, un atacante que haya obtenido al menos acceso de lectura a una instantánea de la base de datos puede suplantar la identidad del servidor Nextcloud ante servidores vinculados. user_oidc 1.3.3 contiene un parche. No se conocen soluciones disponibles."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N","baseScore":3.8,"baseSeverity":"LOW","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":1.2,"impactScore":2.5},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":5.2}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-311"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:*","versionStartIncluding":"1.0.0","versionEndExcluding":"1.3.3","matchCriteriaId":"97E08567-1AEA-413F-A59D-C80E63DD58BB"}]}]}],"references":[{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3f92-5c8p-f6gq","source":"security-advisories@github.com","tags":["Patch","Vendor Advisory"]},{"url":"https://github.com/nextcloud/user_oidc/pull/636","source":"security-advisories@github.com","tags":["Patch"]},{"url":"https://hackerone.com/reports/1994328","source":"security-advisories@github.com","tags":["Permissions Required"]},{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-3f92-5c8p-f6gq","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Vendor Advisory"]},{"url":"https://github.com/nextcloud/user_oidc/pull/636","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch"]},{"url":"https://hackerone.com/reports/1994328","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Permissions Required"]}]}}]}