{"affected":[{"affectedData":[{"product":"GROWI","vendor":"WESEEK, Inc.","versions":[{"status":"affected","version":"versions v4.2.2 and earlier"}]}],"source":"vultures@jpcert.or.jp"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:weseek:growi:4.2.2:*:*:*:*:*:*:*","matchCriteriaId":"353DC517-4EE8-4640-82A8-C7FC26F2E08D","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Invalid file validation on the upload feature in GROWI versions v4.2.2 allows a remote attacker with administrative privilege to overwrite the files on the server, which may lead to arbitrary code execution."},{"lang":"es","value":"Una comprobación de archivos no válidos en la funcionalidad upload en GROWI  versiones v4.2.2, permite a un atacante remoto con privilegios administrativos sobrescribir los archivos en el servidor, lo que puede conllevar a una ejecución de código arbitraria"}],"id":"CVE-2021-20671","lastModified":"2026-06-17T03:34:13.263","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"SINGLE","availabilityImpact":"PARTIAL","baseScore":6.5,"confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:L/Au:S/C:P/I:P/A:P","version":"2.0"},"exploitabilityScore":8.0,"impactScore":6.4,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.2,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":1.2,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-03-10T10:15:12.880","references":[{"source":"vultures@jpcert.or.jp","tags":["Third Party Advisory"],"url":"https://jvn.jp/en/vu/JVNVU94889258/index.html"},{"source":"vultures@jpcert.or.jp","tags":["Vendor Advisory"],"url":"https://weseek.co.jp/security/2021/03/08/vulnerability/growi-prevent-multiple-xss/"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://jvn.jp/en/vu/JVNVU94889258/index.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://weseek.co.jp/security/2021/03/08/vulnerability/growi-prevent-multiple-xss/"}],"sourceIdentifier":"vultures@jpcert.or.jp","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-20"}],"source":"nvd@nist.gov","type":"Primary"}]}