{"cve":"CVE-2021-21699","nvd":{"published":"2021-11-12T11:15:08.007","modified":"2026-06-17T03:36:01.133","status":"Modified","description":"Jenkins Active Choices Plugin 2.5.6 and earlier does not escape the parameter name of reactive parameters and dynamic reference parameters, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Job/Configure permission.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["http://www.openwall.com/lists/oss-security/2021/11/12/1","https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2219","http://www.openwall.com/lists/oss-security/2021/11/12/1","https://www.jenkins.io/security/advisory/2021-11-12/#SECURITY-2219"],"products":["jenkins:active_choices"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-21699","score":0.88476,"percentile":0.9977,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-rp4x-h577-chvq","url":"https://osv.dev/vulnerability/GHSA-rp4x-h577-chvq","summary":"Stored XSS vulnerability in Jenkins Active Choices Plugin","modified":"2024-02-16T08:12:21.837523Z","packages":[{"ecosystem":"Maven","name":"org.biouno:uno-choice","purl":"pkg:maven/org.biouno/uno-choice","ranges":["<2.5.7"],"fixed":["2.5.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}