{"id":"CVE-2021-26587","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-26587","generatedAt":"2026-10-27T22:32:07.143Z","title":"A potential DOM-based Cross Site Scripting security vulnerability has been identified in HPE StoreOnce.","description":"A potential DOM-based Cross Site Scripting security vulnerability has been identified in HPE StoreOnce. The vulnerability could be remotely exploited to cause an elevation of privilege leading to partial impact to confidentiality, availability, and integrity. HPE has made the following software update - HPE StoreOnce 4.3.0, to resolve the vulnerability in HPE StoreOnce.","published":"2021-09-27T15:15:08.000Z","lastModified":"2026-06-17T03:43:32.000Z","status":"Modified","sourceIdentifier":"security-alert@hpe.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L"},"cwe":["CWE-79"],"affected":["hpe/storeonce 5200 firmware","hpe/storeonce 5650 firmware","hpe/storeonce 5250 firmware","hpe/storeonce 3640 firmware","hpe/storeonce 3620 firmware","hpe/storeonce vsa 4tb firmware"],"epss":{"score":0.00497,"percentile":0.4231,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst04176en_us","tags":["Vendor Advisory"],"source":"security-alert@hpe.com"},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst04176en_us","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26587","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}