Description

Longjing Technology BEMS API versions up to and including 1.21 contains an unauthenticated arbitrary file download vulnerability in the 'downloads' endpoint. The 'fileName' parameter is not properly sanitized, allowing attackers to craft traversal sequences and access sensitive files outside the intended directory.

INFO

Published Date :

2025-11-12T22:07:30.512Z

Last Modified :

2025-11-13T17:05:15.434Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2021-4463 vulnerability.

Vendors Products
Shenzhen Longjing Technology
  • Bems Api
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-4463.

URL Resource
https://cxsecurity.com/issue/WLB-2021070173 cve-icon cve-icon
https://exchange.xforce.ibmcloud.com/vulnerabilities/206477 cve-icon cve-icon
https://packetstormsecurity.com/files/163702 cve-icon cve-icon
https://web.archive.org/web/20220527162453/http://www.ljkj2012.com/ cve-icon cve-icon
https://www.exploit-db.com/exploits/50163 cve-icon cve-icon
https://www.vulncheck.com/advisories/longjing-technology-bems-api-remote-arbitrary-file-download cve-icon cve-icon
https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5657.php cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability