What’s Vulnerable › Vulnerabilities

CVE-2023-7330: Ruijie Networks NBR Routers Unauthenticated Arbitrary File Upload via fileupload.php

• Severity: critical (CVSS 9.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-24 · updated 2026-06-17
• Weakness: CWE-434

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

• Beijing Star-Net Ruijie Network Technology Co., Ltd. NBR Series Routers: 0

References

• https://cn-sec.com/archives/1995366.html
• https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/ruijie/ruijie-nbr-fileupload.yaml
• https://rfk0z.github.io/posts/Ruijie-NBR-router-fileupload-php-arbitrary-file-upload-vulnerability/
• https://www.cnblogs.com/Domren/articles/19093295
• https://www.vulncheck.com/advisories/ruijie-networks-nbr-routers-unauthenticated-arbitrary-file-upload-via-fileuploadphp

Get alerted when CVE-2023-7330 or the next vulnerability affects your stack