{"id":"CVE-2021-3378","aliases":["EUVD-2021-26708","GHSA-2fh3-xg72-f7vx"],"status":"published","title":"FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a \"Content-Type: image/png\"...","description":"FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a \"Content-Type: image/png\" header to Config/SaveUploadedHotspotLogoFile and then visiting Assets/temp/hotspot/img/logohotspot.asp.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.97512,"percentile":0.99901,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-434"],"published":"2021-02-01T22:08:33Z","modified":"2026-06-17T04:05:00Z","exploits":[{"source":"exploitdb","id":"EDB-49600","title":"FortiLogger 4.4.2.2 - Unauthenticated Arbitrary File Upload (Metasploit)","type":"webapps","platform":"multiple","date":"2021-03-01","verified":true,"url":"https://www.exploit-db.com/exploits/49600"},{"source":"metasploit","id":"exploit/windows/http/fortilogger_arbitrary_fileupload","title":"FortiLogger Arbitrary File Upload Exploit","type":"exploit","platform":"Windows","date":"2021-02-26","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/windows/http/fortilogger_arbitrary_fileupload"},{"source":"nuclei","id":"CVE-2021-3378","title":"FortiLogger 4.4.2.2 - Arbitrary File Upload","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-3378.yaml"},{"source":"pocgithub","id":"erberkan/fortilogger_arbitrary_fileupload","title":"erberkan/fortilogger_arbitrary_fileupload","date":"2021-01-30","url":"https://github.com/erberkan/fortilogger_arbitrary_fileupload"}],"products":[{"vendor":"fortilogger","product":"fortilogger"}],"references":[{"url":"https://github.com/erberkan/fortilogger_arbitrary_fileupload","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"http://packetstormsecurity.com/files/161601/FortiLogger-4.4.2.2-Arbitrary-File-Upload.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://packetstormsecurity.com/files/161974/FortiLogger-Arbitrary-File-Upload.html","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-3378"},{"url":"https://github.com/advisories/GHSA-2fh3-xg72-f7vx"}],"sources":{"cve":[{"id":"CVE-2021-3378","description":"FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a \"Content-Type: image/png\" header to Config/SaveUploadedHotspotLogoFile and then visiting Assets/temp/hotspot/img/logohotspot.asp.","status":"published","published":"2021-02-01T22:08:33Z","modified":"2024-08-03T16:53:17.416Z","updated_at":"2026-11-02T14:33:04.020035Z"}],"euvd":[{"id":"EUVD-2021-26708","description":"FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a \"Content-Type: image/png\" header to Config/SaveUploadedHotspotLogoFile and then visiting Assets/temp/hotspot/img/logohotspot.asp.","status":"published","published":"2021-02-01T22:08:33Z","modified":"2024-08-03T16:53:17Z","updated_at":"2026-11-03T03:25:13.052236Z"}],"ghsa":[{"id":"GHSA-2fh3-xg72-f7vx","title":"FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a \"Content-Type: image/png\"...","description":"FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a \"Content-Type: image/png\" header to Config/SaveUploadedHotspotLogoFile and then visiting Assets/temp/hotspot/img/logohotspot.asp.","status":"published","published":"2022-05-24T17:40:45Z","modified":"2023-01-29T05:05:34Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:45:49.336023Z"}],"nvd":[{"id":"CVE-2021-3378","description":"FortiLogger 4.4.2.2 is affected by Arbitrary File Upload by sending a \"Content-Type: image/png\" header to Config/SaveUploadedHotspotLogoFile and then visiting Assets/temp/hotspot/img/logohotspot.asp.","status":"published","published":"2021-02-01T23:15:12.797Z","modified":"2026-06-17T04:05:00.34Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:49.660551Z"}]}}