What is CVE-2021-40883?

CVE-2021-40883 is a critical-severity vulnerability in Emlog, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-12-14.

How severe is CVE-2021-40883?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-40883 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Emlog

CVE-2021-40883

A Remote Code Execution (RCE) vulnerability exists in emlog 5.3.1 via content/plugins.

Vulnerability class: Unrestricted File Upload

EPSS: 0.030 (85.8th percentile) — read the EPSS interpretation.

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.

Affected products

Emlog — versions 5.3.1
N/a — versions n/a

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-40883?: CVE-2021-40883 is a critical-severity vulnerability in Emlog, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-12-14.
How severe is CVE-2021-40883?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-40883 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.