{"id":"CVE-2021-37392","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-37392","generatedAt":"2026-10-27T19:57:24.967Z","title":"When the API functions are enabled, the attacker can use API to update user nickname with XSS payload and achieve stored XSS.","description":"In RPCMS v1.8 and below, the \"nickname\" variable is not properly sanitized before being displayed on page. When the API functions are enabled, the attacker can use API to update user nickname with XSS payload and achieve stored XSS. Users who view the articles published by the injected user will trigger the XSS.","published":"2021-07-26T18:15:09.000Z","lastModified":"2026-06-17T04:00:28.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"cwe":["CWE-79"],"affected":["rpcms/rpcms"],"epss":{"score":0.00527,"percentile":0.44377,"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 (0.53%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://gist.github.com/victomteng1997/bfa1e0e07dd22f7e0b13256eda79626f","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/ralap-z/RPCMS/","tags":["Product"],"source":"cve@mitre.org"},{"url":"https://gist.github.com/victomteng1997/bfa1e0e07dd22f7e0b13256eda79626f","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/ralap-z/RPCMS/","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-37392","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."}