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CVE-2023-7330

30
FAUCET Score

CVE-2023-7330 is an unauthenticated arbitrary file upload vulnerability affecting Ruijie NBR series routers, specifically via the /ddi/server/fileupload.php endpoint. Attackers can leverage inadequate validation of file type, path, and extension to upload malicious PHP files. This critical vulnerability, with a CVSS score of 9.3, allows for remote arbitrary code execution in the context of the web service. While exploitation evidence was observed by the Shadowserver Foundation on January 14, 2025, there is currently no public exploit code available, and it has received minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Beijing Star-Net Ruijie Network Technology Co., Ltd.NBR Series Routers
0CNA affecteddefault unknown

CVSS Data

CVSS version used by this source: 4.0

9.3CRITICAL

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:X/V:X/RE:X/U:X

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
VS Confidentiality
HIGH
VS Integrity
HIGH
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.60%
Probability of exploitation in next 30 days
EPSS Percentile
45.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0060 is in the 26th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

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