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Public proof of concept

CVE-2023-30803

A public proof of concept exists; no exploitation attested.

  • Published2023-10-10
  • WeaknessCWE-290

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-10-1015:15CVE publishedNVD

Versions per branch

NVD
Sangfor next-gen application firewall
BranchAffectedFixed in
8.0= 8.0.17no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As VulnCheck, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Sangfor Net-Gen Application Firewallother versions: not affected

    platforms: Linux

    Affected
    • = 8.0.17no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-11-28

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionpoc2024-09-19
  • CNACVSS 3.19.8known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNAweakness (CWE)CWE-290known since 2026-10-23
  • NVDweakness (CWE)CWE-290read 2026-10-23
  • FIRST EPSSEPSS score20.9 %read 2026-11-10
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-10-10
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-rch9-592x-rrw8

Frequently asked questions

What is CVE-2023-30803?

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.

Is CVE-2023-30803 actively exploited?

A proof-of-concept exploit exists for CVE-2023-30803, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-30803?

CVE-2023-30803 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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