{"id":"CVE-2020-8823","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-8823","generatedAt":"2026-10-28T02:58:23.366Z","title":"htmlfile in lib/transport/htmlfile.js in SockJS before 0.3.0 is vulnerable to Reflected XSS via the /htmlfile c (aka callback) parameter.","description":"htmlfile in lib/transport/htmlfile.js in SockJS before 0.3.0 is vulnerable to Reflected XSS via the /htmlfile c (aka callback) parameter.","published":"2020-02-10T03:15:11.000Z","lastModified":"2026-06-17T03:27:00.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["sockjs project/sockjs"],"epss":{"score":0.01886,"percentile":0.79365,"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 (1.89%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/theyiyibest/Reflected-XSS-on-SockJS","tags":["Exploit","Patch","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/theyiyibest/Reflected-XSS-on-SockJS/issues/1","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://snyk.io/vuln/SNYK-JS-SOCKJS-548397","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.sockjs.org","tags":["Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/theyiyibest/Reflected-XSS-on-SockJS","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/theyiyibest/Reflected-XSS-on-SockJS/issues/1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://snyk.io/vuln/SNYK-JS-SOCKJS-548397","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.sockjs.org","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-8823","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."}