{"id":"CVE-2021-24807","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-24807","generatedAt":"2026-10-27T21:20:13.201Z","title":"The Support Board WordPress plugin before 3.3.5 allows Authenticated (Agent+) users to perform Cross-Site Scripting attacks by placing a payload in the notes field, when an administrator or any authenticated user go to the chat the XSS will be…","description":"The Support Board WordPress plugin before 3.3.5 allows Authenticated (Agent+) users to perform Cross-Site Scripting attacks by placing a payload in the notes field, when an administrator or any authenticated user go to the chat the XSS will be automatically executed.","published":"2021-11-08T18:15:10.000Z","lastModified":"2026-06-17T03:40:57.000Z","status":"Modified","sourceIdentifier":"contact@wpscan.com","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":["schiocco/support board"],"epss":{"score":0.01417,"percentile":0.72594,"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 (1.42%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/itsjeffersonli/CVE-2021-24807","tags":["Exploit","Third Party Advisory"],"source":"contact@wpscan.com"},{"url":"https://medium.com/%40lijohnjefferson/cve-2021-24807-6bc22af2a444","source":"contact@wpscan.com"},{"url":"https://wpscan.com/vulnerability/19d101aa-4b60-4db4-a33b-86c826b288b0","tags":["Exploit","Third Party Advisory"],"source":"contact@wpscan.com"},{"url":"https://github.com/itsjeffersonli/CVE-2021-24807","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://medium.com/%40lijohnjefferson/cve-2021-24807-6bc22af2a444","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wpscan.com/vulnerability/19d101aa-4b60-4db4-a33b-86c826b288b0","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-24807","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."}