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Vulnerability record · CVE-2023-30802 · published 10 October 2023

CVE-2023-30802: Sangfor next-gen application firewall exposure of resource to wrong sphere vulnerability

Sangfor · Next Gen Application Firewall

The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to a source code disclosure vulnerability. A remote and unauthenticated attacker can obtain PHP source code by sending an HTTP request with an invalid Content-Length field.

5.3 CVSS 3.1 Medium EPSS 0.65% · top 51.1% CWE-540 · CWE-540CWE-668 · Exposure of resource to wrong sphere
5.3CVSS 3.1 base score
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

The Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to a source code disclosure vulnerability. A remote and unauthenticated attacker can obtain PHP source code by sending an HTTP request with an invalid Content-Length field.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://aws.amazon.com/marketplace/pp/prodview-uujwjffddxzp4 Product
https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/ ExploitThird Party Advisory
https://vulncheck.com/advisories/sangfor-ngaf-source Third Party Advisory
https://aws.amazon.com/marketplace/pp/prodview-uujwjffddxzp4 Product
https://labs.watchtowr.com/yet-more-unauth-remote-command-execution-vulns-in-firewalls-sangfor-edition/ ExploitThird Party Advisory
https://vulncheck.com/advisories/sangfor-ngaf-source Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2023-30805Sangfor NGAF unauthenticated OS command injection in login endpointSangfor Next-Gen Application Firewall 8.0.17 mishandles shell metacharacters in the "un" parameter of the /LogInOut.php endpoint, allowing OS command…EPSS 66%analysed9.8CVE-2023-30806Sangfor NGAF unauthenticated OS command injection via PHPSESSID cookieSangfor Next-Gen Application Firewall version NGAF8.0.17 mishandles shell meta-characters in the PHPSESSID cookie, allowing OS command injection. A r…EPSS 66%analysed9.8CVE-2023-30803Sangfor next-gen application firewall authentication bypass by spoofing vulnerabilityThe Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authentication bypass vulnerability. A remote and unauthenticated at…EPSS 18%6.5CVE-2023-30804Sangfor next-gen application firewall information exposure vulnerabilityThe Sangfor Next-Gen Application Firewall version NGAF8.0.17 is vulnerable to an authenticated file disclosure vulnerability. A remote and authentica…EPSS 13%

Source: NIST National Vulnerability Database (record CVE-2023-30802), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.