{"id":"CVE-2021-20717","aliases":["EUVD-2022-3535","GHSA-c8mx-43cq-993w"],"status":"published","title":"EC-CUBE Cross-site scripting vulnerability","description":"Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.02308,"percentile":0.83589,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-79"],"published":"2021-05-10T09:10:14Z","modified":"2026-10-24T10:31:04Z","exploits":[{"source":"pocgithub","id":"s-index/CVE-2021-20717","title":"s-index/CVE-2021-20717","date":"2021-05-29","url":"https://github.com/s-index/CVE-2021-20717"}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"ec-cube/ec-cube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"last_affected":"4.0.5"}]}]},{"source":"osv","ecosystem":"Packagist","package":"ec-cube/ec-cube","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.0.0"},{"last_affected":"4.0.5"}]}],"versions":["4.0.0","4.0.1","4.0.2","4.0.3","4.0.4","4.0.5","4.0.5-rc"]}],"products":[{"vendor":"ec-cube","product":"ec-cube"},{"vendor":"ec-cube co.,ltd.","product":"ec-cube"}],"references":[{"url":"https://www.ec-cube.net/news/detail.php?news_id=384","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix","web"]},{"url":"https://www.ec-cube.net/news/detail.php?news_id=383","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix","web"]},{"url":"https://jvn.jp/en/jp/JVN97554111/index.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-20717","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c8mx-43cq-993w"},{"url":"https://github.com/EC-CUBE/ec-cube","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-20717","description":"Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.","status":"published","published":"2021-05-10T09:10:14Z","modified":"2024-08-03T17:53:21.816Z","updated_at":"2026-11-02T14:32:55.19484Z"}],"euvd":[{"id":"EUVD-2022-3535","description":"Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.","status":"published","published":"2021-05-10T09:10:14Z","modified":"2024-08-03T17:53:21Z","updated_at":"2026-11-03T03:25:08.33351Z"}],"ghsa":[{"id":"GHSA-c8mx-43cq-993w","title":"EC-CUBE Cross-site scripting vulnerability","description":"Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.","status":"published","published":"2022-05-24T19:01:56Z","modified":"2024-04-25T20:40:13Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:46.667202Z"}],"nvd":[{"id":"CVE-2021-20717","description":"Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.","status":"published","published":"2021-05-10T10:15:07.313Z","modified":"2026-06-17T03:34:18.727Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:53.343329Z"}],"osv":[{"id":"CVE-2021-20717","description":"Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.","status":"published","published":"2021-05-10T10:15:07.313Z","modified":"2026-10-24T10:31:04.759680278Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:18.004149Z"},{"id":"GHSA-c8mx-43cq-993w","title":"EC-CUBE Cross-site scripting vulnerability","description":"Cross-site scripting vulnerability in EC-CUBE 4.0.0 to 4.0.5 allows a remote attacker to inject a specially crafted script in the specific input field of the EC web site which is created using EC-CUBE. As a result, it may lead to an arbitrary script execution on the administrator's web browser.","status":"published","published":"2022-05-24T19:01:56Z","modified":"2024-04-25T20:57:37.08973Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:44.927642Z"}]}}