Arbitrary file upload in Monitorr

CVE-2020-28871

Remote code execution in Monitorr v1.7.6m in upload.php allows an unauthorized person to execute arbitrary code on the server-side via an insecure file upload.

Vulnerability class: Unrestricted File Upload

EPSS: 0.858 (99.7th 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

  • Monitorr — versions 1.7.6m
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-28871?
CVE-2020-28871 is a critical-severity vulnerability in Monitorr, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-02-10.
How severe is CVE-2020-28871?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-28871 known to be exploited?
7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.