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CVE-2021-4463highCWE-22CWE-552

Longjing Technology BEMS API <= 1.21 Remote Arbitrary File Download

36Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 8.7epss 1.5%
exploitation probability
1.5%top 28% of all CVEs
observed exploitation
nono source reports it
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.
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