What is CVE-2021-44978?

CVE-2021-44978 is a critical-severity vulnerability in Idreamsoft Icms, classified under Code Injection. CVSS score: 9.8/10. Published 2022-02-04.

How severe is CVE-2021-44978?

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

RCE in Idreamsoft Icms

CVE-2021-44978

iCMS <= 8.0.0 allows users to add and render a comtom template, which has a SSTI vulnerability which causes remote code execution.

Vulnerability class: RCE (Remote Code Execution)

Published 2022-02-04 · 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: 0.022 (81.6th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Idreamsoft Icms

Weakness classification (CWE)

CWE-94 — Code Injection

References

www.icmsdev.com/ (Product)
gem-love.com/2021/12/10/ICMS-8-0-0后台模板注入导致远程代码执行0day漏洞分析/ (Third Party Advisory)

Frequently asked questions

What is CVE-2021-44978?: CVE-2021-44978 is a critical-severity vulnerability in Idreamsoft Icms, classified under Code Injection. CVSS score: 9.8/10. Published 2022-02-04.
How severe is CVE-2021-44978?: Critical severity. CVSS v3 base score is 9.8 out of 10.