What is CVE-2022-33941?

CVE-2022-33941 is a critical-severity vulnerability in Alfasado Powercms, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-09-08.

How severe is CVE-2022-33941?

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

Is CVE-2022-33941 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Alfasado Powercms

CVE-2022-33941

PowerCMS XMLRPC API provided by Alfasado Inc. contains a command injection vulnerability. Sending a specially crafted message by POST method to PowerCMS XMLRPC API may allow arbitrary Perl script execution, and an arbitrary OS command may be executed through it. Affected products/versions are as follows: PowerCMS 6.021 and earlier (PowerCMS 6 Series), PowerCMS 5.21 and earlier (PowerCMS 5 Series), and PowerCMS 4.51 and earlier (PowerCMS 4 Series). Note that all versions of PowerCMS 3 Series and earlier which are unsupported (End-of-Life, EOL) are also affected by this vulnerability.

Vulnerability class: Command Injection (OS Command Injection)

Published 2022-09-08 · 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: 0.019 (79.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 79.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.019 · change: +0.002

Affected products

Alfasado Powercms
Alfasado Inc. Powercms Xmlrpc API — versions PowerCMS 6.021 and earlier (PowerCMS 6 Series), PowerCMS 5.21 and earlier (PowerCMS 5 Series), PowerCMS 4.51 and earlier (PowerCMS 4 Series), and PowerCMS 3 Series and earlier which are unsupported (End-of-Life, EOL)

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

karimhabush/cyberowl

References

www.powercms.jp/news/xmlrpc-api-provision-202208.html (Patch, Vendor Advisory)
jvn.jp/en/jp/JVN76024879/index.html (Third Party Advisory)

Frequently asked questions

What is CVE-2022-33941?: CVE-2022-33941 is a critical-severity vulnerability in Alfasado Powercms, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-09-08.
How severe is CVE-2022-33941?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-33941 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.