Arbitrary file upload in H3c Cvm
CVE-2023-54405
H3C CVM, the Cloud Virtualization Management component of the H3C CAS cloud platform, contains an unauthenticated arbitrary file upload vulnerability in the /cas/fileUpload/upload endpoint that allows remote attackers to write arbitrary files by manipulating the caller-supplied token parameter without restricting path traversal or file type. Attackers can exploit the path traversal in the token parameter to upload a malicious JSP file into a web-accessible directory and then request it to achieve remote code execution as the web-server user. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14.
Vulnerability class: Unrestricted File Upload
Published .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/oth… (technical-description)
- blog.csdn.net/qq_41904294/article/details/134697278 (technical-description, exploit)
- www.h3c.com/en/Support/Resource_Center/EN/Cloud_Computing/Catalog/H3C_CAS/H3C_C… (product)
- www.vulncheck.com/advisories/h3c-cvm-unauthenticated-file-upload-via-fileupload… (third-party-advisory)
Frequently asked questions
- What is CVE-2023-54405?
- CVE-2023-54405 is a critical-severity vulnerability in H3c Cvm, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-10-02.
- How severe is CVE-2023-54405?
- Critical severity. CVSS v3 base score is 9.8 out of 10.