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Vulnerability record · CVE-2023-7330 · published 24 November 2025

CVE-2023-7330: Unrestricted file upload vulnerability

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.

9.3 CVSS 4.0 Critical EPSS 0.62% · top 52.6% CWE-434 · Unrestricted file upload Deferred
9.3CVSS 4.0 base score
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

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.

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/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:

References

LinkTags
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

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Source: NIST National Vulnerability Database (record CVE-2023-7330), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.