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.
History

Thu, 13 Nov 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 13 Nov 2025 16:00:00 +0000

Type Values Removed Values Added
First Time appeared Shenzhen Longjing Technology
Shenzhen Longjing Technology bems Api
Vendors & Products Shenzhen Longjing Technology
Shenzhen Longjing Technology bems Api

Wed, 12 Nov 2025 22:15:00 +0000

Type Values Removed Values Added
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.
Title Longjing Technology BEMS API <= 1.21 Remote Arbitrary File Download
Weaknesses CWE-22
CWE-552
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2025-11-13T17:05:15.434Z

Reserved: 2025-11-12T20:55:39.039Z

Link: CVE-2021-4463

cve-icon Vulnrichment

Updated: 2025-11-13T17:05:11.413Z

cve-icon NVD

Status : Received

Published: 2025-11-12T22:15:41.863

Modified: 2025-11-12T22:15:41.863

Link: CVE-2021-4463

cve-icon Redhat

No data.