{"affected":[{"affectedData":[{"product":"EC-CUBE","vendor":"EC-CUBE CO.,LTD.","versions":[{"status":"affected","version":"EC-CUBE 3.0.0 to 3.0.18-p2 (EC-CUBE 3 series) and EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series)"}]}],"source":"vultures@jpcert.or.jp"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:ec-cube:ec-cube:*:*:*:*:*:*:*:*","matchCriteriaId":"5CB1CDC4-2EB3-4003-B9C2-A2B0819685C4","versionEndExcluding":"3.0.18","versionStartIncluding":"3.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:ec-cube:ec-cube:*:*:*:*:*:*:*:*","matchCriteriaId":"C7D09A7E-C1DC-4133-8CD3-DF1BDFCCF7A0","versionEndExcluding":"4.0.5","versionStartIncluding":"4.0.0","vulnerable":true},{"criteria":"cpe:2.3:a:ec-cube:ec-cube:3.0.18:-:*:*:*:*:*:*","matchCriteriaId":"8D6A3FBD-7161-461D-B165-E3BCA42BBB2A","vulnerable":true},{"criteria":"cpe:2.3:a:ec-cube:ec-cube:3.0.18:p1:*:*:*:*:*:*","matchCriteriaId":"10F6D9C1-B4F3-44D8-B266-787DA62228E2","vulnerable":true},{"criteria":"cpe:2.3:a:ec-cube:ec-cube:4.0.5:-:*:*:*:*:*:*","matchCriteriaId":"C0B938B6-CE88-40E5-B049-A0837C5614FB","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Cross-site scripting vulnerability in EC-CUBE EC-CUBE 3.0.0 to 3.0.18-p2 (EC-CUBE 3 series) and EC-CUBE 4.0.0 to 4.0.5-p1 (EC-CUBE 4 series) allows a remote attacker to inject an arbitrary script by leading an administrator or a user to a specially crafted page and to perform a specific operation."},{"lang":"es","value":"Una vulnerabilidad de tipo cross-site scripting en EC-CUBE EC-CUBE versiones 3.0.0 hasta 3.0.18-p2 (serie EC-CUBE 3) y EC-CUBE versiones 4.0.0 hasta 4.0.5-p1 (serie EC-CUBE 4) permite a un atacante remoto inyectar un script arbitrario conllevando a un administrador o a un usuario a una página especialmente diseñada y llevar a cabo una operación específica"}],"id":"CVE-2021-20750","lastModified":"2026-06-17T03:34:22.110","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"MEDIUM","accessVector":"NETWORK","authentication":"NONE","availabilityImpact":"NONE","baseScore":4.3,"confidentialityImpact":"NONE","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:M/Au:N/C:N/I:P/A:N","version":"2.0"},"exploitabilityScore":8.6,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":true}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"exploitabilityScore":2.8,"impactScore":2.7,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2021-06-28T01:15:07.567","references":[{"source":"vultures@jpcert.or.jp","tags":["Third Party Advisory"],"url":"https://jvn.jp/en/jp/JVN95292458/index.html"},{"source":"vultures@jpcert.or.jp","tags":["Vendor Advisory"],"url":"https://www.ec-cube.net/info/weakness/weakness.php?id=78"},{"source":"vultures@jpcert.or.jp","tags":["Vendor Advisory"],"url":"https://www.ec-cube.net/info/weakness/weakness.php?id=79"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"],"url":"https://jvn.jp/en/jp/JVN95292458/index.html"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://www.ec-cube.net/info/weakness/weakness.php?id=78"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://www.ec-cube.net/info/weakness/weakness.php?id=79"}],"sourceIdentifier":"vultures@jpcert.or.jp","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-79"}],"source":"nvd@nist.gov","type":"Primary"}]}