{"cve":"CVE-2021-24807","nvd":{"published":"2021-11-08T18:15:10.077","modified":"2026-06-17T03:40:56.527","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4},"cwes":["CWE-79"],"references":["https://github.com/itsjeffersonli/CVE-2021-24807","https://medium.com/%40lijohnjefferson/cve-2021-24807-6bc22af2a444","https://wpscan.com/vulnerability/19d101aa-4b60-4db4-a33b-86c826b288b0","https://github.com/itsjeffersonli/CVE-2021-24807","https://medium.com/%40lijohnjefferson/cve-2021-24807-6bc22af2a444"],"products":["schiocco:support_board"],"source":"nvd","synced_at":"2026-10-19T21:24:39.218183596+00:00"},"epss":{"cve":"CVE-2021-24807","score":0.01417,"percentile":0.72789,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}