Arbitrary file upload in Microweber

CVE-2020-23138

An unrestricted file upload vulnerability was discovered in the Microweber 1.1.18 admin account page. An attacker can upload PHP code or any extension (eg- .exe) to the web server by providing image data and the image/jpeg content type with a .php extension.

Vulnerability class: Unrestricted File Upload

EPSS: 0.013 (67.5th 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

  • Microweber — versions 1.1.18
  • N/a — versions n/a

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-23138?
CVE-2020-23138 is a critical-severity vulnerability in Microweber, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-11-09.
How severe is CVE-2020-23138?
Critical severity. CVSS v3 base score is 9.8 out of 10.