{"id":"CVE-2021-26753","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-26753","generatedAt":"2026-10-27T20:22:49.280Z","title":"NeDi 1.9C allows an authenticated user to inject PHP code in the System Files function on the endpoint /System-Files.php via the txt HTTP POST parameter.","description":"NeDi 1.9C allows an authenticated user to inject PHP code in the System Files function on the endpoint /System-Files.php via the txt HTTP POST parameter. This allows an attacker to obtain access to the operating system where NeDi is installed and to all application data.","published":"2021-02-12T21:15:13.000Z","lastModified":"2026-06-17T03:43:46.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"cwe":["CWE-863"],"affected":["nedi/nedi"],"epss":{"score":0.0115,"percentile":0.66668,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.15%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://n4nj0.github.io/advisories/nedi-multiple-vulnerabilities-i/","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://n4nj0.github.io/advisories/nedi-multiple-vulnerabilities-i/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-26753","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."}