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Fencer Vulns
medium 4.9

CVE-2023-30804 json

Sangfor Next-Gen Application Firewall Authenticated File Disclosure

published 2023-10-10 3 y ago modified 2026-10-01 38 d ago also EUVD-2023-35164

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
38.9%
EPSS 38.9% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authenticated file disclosure vulnerability. A remote and authenticated attacker can read arbitrary system files using the svpn_html/loadfile.php endpoint. This issue is exploitable by a remote and unauthenticated attacker when paired with CVE-2023-30803.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

38.95% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • labs.watchtowr.com https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CNA 4.0 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

  • Sangfor Next-Gen Application Firewall (NGAF)

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.