{"id":"CVE-2021-31673","title":"A Dom-based Cross-site scripting (XSS) vulnerability at registration account in Cyclos 4 PRO.14.7 and before allows remote attackers to inject arbitrary web script or HTML via the groupId parameter.","summary":"A Dom-based Cross-site scripting (XSS) vulnerability at registration account in Cyclos 4 PRO.14.7 and before allows remote attackers to inject arbitrary web script or HTML via the groupId parameter.","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79"],"vendor":"cyclos","product":"cyclos","affected":["cyclos >= 4.0.0, <= 4.14.7"],"published":"2022-05-02","updated":"2026-07-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-31673","references":[{"url":"http://packetstormsecurity.com/files/167040/Cyclos-4.14.7-Cross-Site-Scripting.html","label":"cve@mitre.org"},{"url":"https://tf1t.gitbook.io/mycve/cylos/cyclos-4.14.7-dom-based-cross-site-scripting-cve-2021-31673","label":"cve@mitre.org"},{"url":"http://cyclos.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://packetstormsecurity.com/files/167040/Cyclos-4.14.7-Cross-Site-Scripting.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://tf1t.gitbook.io/mycve/cylos/cyclos-4.14.7-dom-based-cross-site-scripting-cve-2021-31673","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","exploit-available"],"epss":0.02559,"epssPercentile":0.84415,"exploitAvailable":true,"ingestedAt":"2026-07-06T17:03:24.345Z","exploits":{"exploitdb":true,"checkedAt":"2026-09-24T07:52:48.856Z"},"slug":"CVE-2021-31673","body":"## Overview\n\nA Dom-based Cross-site scripting (XSS) vulnerability at registration account in Cyclos 4 PRO.14.7 and before allows remote attackers to inject arbitrary web script or HTML via the groupId parameter.\n\n## Affected\n\n- `cyclos >= 4.0.0, <= 4.14.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":33.6,"likelihood":0.5,"exploitation":12,"ransomware":0},"changes":[]}