{"cve":"CVE-2021-24563","nvd":{"published":"2021-10-11T11:15:08.747","modified":"2026-06-17T03:40:14.643","status":"Modified","description":"The Frontend Uploader WordPress plugin through 1.3.2 does not prevent HTML files from being uploaded via its form, allowing unauthenticated user to upload a malicious HTML file containing JavaScript for example, which will be triggered when someone access the file directly","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","score":6.1},"cwes":["CWE-79"],"references":["http://packetstormsecurity.com/files/165515/WordPress-Frontend-Uploader-1.3.2-Cross-Site-Scripting.html","https://wpscan.com/vulnerability/e53ef41e-a176-4d00-916a-3a03835370f1","http://packetstormsecurity.com/files/165515/WordPress-Frontend-Uploader-1.3.2-Cross-Site-Scripting.html","https://wpscan.com/vulnerability/e53ef41e-a176-4d00-916a-3a03835370f1"],"products":["frontend_uploader_project:frontend_uploader"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-24563","score":0.26272,"percentile":0.98002,"date":"2026-11-01"},"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."]}