{"affected":[{"affectedData":[{"product":"Jenkins Credentials Plugin","vendor":"Jenkins project","versions":[{"lessThanOrEqual":"2.3.18","status":"affected","version":"unspecified","versionType":"custom"},{"status":"unaffected","version":"2.3.0.1"},{"status":"unaffected","version":"2.3.7.1"},{"status":"unaffected","version":"2.3.14.1"},{"status":"unaffected","version":"2.3.13.1"},{"status":"unaffected","version":"2.3.15.1"}]}],"source":"jenkinsci-cert@googlegroups.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:jenkins:credentials:*:*:*:*:*:jenkins:*:*","matchCriteriaId":"F5CA180F-FACB-4DCB-86A9-470AE609D067","versionEndIncluding":"2.3.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Jenkins Credentials Plugin 2.3.18 and earlier does not escape user-controlled information on a view it provides, resulting in a reflected cross-site scripting (XSS) vulnerability."},{"lang":"es","value":"Jenkins Credentials Plugin versiones  2.3.18 y anteriores, no escapa la información controlada por el usuario en una vista que la proporciona, resultando en una vulnerabilidad de tipo cross-site scripting (XSS) reflejado"}],"id":"CVE-2021-21648","lastModified":"2026-06-17T03:35:55.917","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":"2021-05-11T15:15:07.873","references":[{"source":"jenkinsci-cert@googlegroups.com","tags":["Vendor Advisory"],"url":"https://www.jenkins.io/security/advisory/2021-05-11/#SECURITY-2349"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Vendor Advisory"],"url":"https://www.jenkins.io/security/advisory/2021-05-11/#SECURITY-2349"}],"sourceIdentifier":"jenkinsci-cert@googlegroups.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-79"}],"source":"nvd@nist.gov","type":"Primary"}]}