{"id":"CVE-2023-30803","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-30803","generatedAt":"2026-11-04T22:54:59.896Z","title":"The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authentication bypass vulnerability.","description":"The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authentication bypass vulnerability. A remote and unauthenticated attacker can bypass authentication and access administrative functionality by sending HTTP requests using a crafted Y-forwarded-for header.","published":"2023-10-10T15:15:10.000Z","lastModified":"2026-06-17T05:55:44.000Z","status":"Modified","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-290"],"affected":["sangfor/next-gen application firewall"],"epss":{"score":0.20887,"percentile":0.97557,"date":"2026-11-03","history":[{"date":"2026-10-11","score":0.20887,"percentile":0.97508}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 20.9%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://aws.amazon.com/marketplace/pp/prodview-uujwjffddxzp4","tags":["Product"],"source":"disclosure@vulncheck.com"},{"url":"https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/","tags":["Exploit","Third Party Advisory"],"source":"disclosure@vulncheck.com"},{"url":"https://vulncheck.com/advisories/sangfor-ngaf-auth-bypass","tags":["Third Party Advisory"],"source":"disclosure@vulncheck.com"},{"url":"https://aws.amazon.com/marketplace/pp/prodview-uujwjffddxzp4","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://vulncheck.com/advisories/sangfor-ngaf-auth-bypass","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-30803","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."}