VULNERABILITY INTELLIGENCE
CVE-2021-4463
EPSS probability1.54%
CISA KEVNot currently listed
Published2025-11-12
Last modified2026-06-17
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.
Weakness classification
- disclosure@vulncheck.com: CWE-22