RCE in Mingsoft Mcms

CVE-2021-46063

MCMS v5.2.5 was discovered to contain a Server Side Template Injection (SSTI) vulnerability via the Template Management module.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.027 (84.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

Affected products

Mingsoft Mcms — versions 5.2.5
N/a — versions n/a

Weakness classification (CWE)

CWE-94 — Code Injection

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2021-46063?: CVE-2021-46063 is a critical-severity vulnerability in Mingsoft Mcms, classified under Code Injection. CVSS score: 9.1/10. Published 2022-02-18.
How severe is CVE-2021-46063?: Critical severity. CVSS v3 base score is 9.1 out of 10.
Is CVE-2021-46063 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.