Vulnerability · Published Nov 24, 2025 · Assigned by VulnCheck
CVE-2023-7330Ruijie Networks NBR Routers Unauthenticated Arbitrary File Upload via fileupload.php
Critical 9.3
In plain English
A critical-severity unrestricted file upload in NBR Series Routers from Beijing Star-Net Ruijie Network Technology Co., Ltd.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Official description
Ruijie NBR series routers contain an unauthenticated arbitrary file upload vulnerability via /ddi/server/fileupload.php. The endpoint accepts attacker-supplied values in the name and uploadDir parameters and saves the provided multipart file content without adequate validation or sanitization of file type, path, or extension. A remote attacker can upload a crafted PHP file and then access it from the web root, resulting in arbitrary code execution in the context of the web service. Exploitation evidence was observed by the Shadowserver Foundation on 2025-01-14 UTC.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Beijing Star-Net Ruijie Network Technology Co., Ltd. | NBR Series Routers | 0 |
Weakness: CWE-434 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/ruijie/ruijie-nbr-fileupload.yaml exploit
- https://cn-sec.com/archives/1995366.html exploit
- https://www.cnblogs.com/Domren/articles/19093295 exploit
- https://rfk0z.github.io/posts/Ruijie-NBR-router-fileupload-php-arbitrary-file-upload-vulnerability/ exploit
- https://www.vulncheck.com/advisories/ruijie-networks-nbr-routers-unauthenticated-arbitrary-file-upload-via-fileuploadphp third-party-advisory