What is CVE-2021-43736?

CVE-2021-43736 is a critical-severity vulnerability in Cmswing, classified under Argument Injection. CVSS score: 9.8/10. Published 2022-03-23.

How severe is CVE-2021-43736?

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

Vulnerability in Cmswing

CVE-2021-43736

CmsWing CMS 1.3.7 is affected by a Remote Code Execution (RCE) vulnerability via parameter: log rule

Published 2022-03-23 · last modified 2026-06-17.

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: 0.025 (84.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 84th percentile — 84.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

Cmswing — versions 1.3.7

Weakness classification (CWE)

CWE-88 — Argument Injection

References

github.com/arterli/CmsWing/issues/56 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-43736?: CVE-2021-43736 is a critical-severity vulnerability in Cmswing, classified under Argument Injection. CVSS score: 9.8/10. Published 2022-03-23.
How severe is CVE-2021-43736?: Critical severity. CVSS v3 base score is 9.8 out of 10.