Arbitrary file upload in Zrlog

CVE-2021-44093

A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar function, could bypass the original limit, upload the JSP file to get a WebShell

Vulnerability class: Unrestricted File Upload

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.026 (84.7th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-44093: held from 0.025 to 0.026.

EPSS over last 30 days · oldest: 0.025 · newest: 0.026 · change: +0.001

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-44093?
CVE-2021-44093 is a critical-severity vulnerability in Zrlog, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-11-28.
How severe is CVE-2021-44093?
Critical severity. CVSS v3 base score is 9.8 out of 10.