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.
Conclusion & alert: CVE-2022-33941 is rated High Risk (65.2/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.69%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-19 | 1.62% | 1.69% | +0.07% |
| 2 | 2026-06-15 | 5.22% | 1.62% | -3.60% |
| 3 | 2025-09-17 | — | 5.22% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| URL | Tags |
|---|---|
| https://jvn.jp/en/jp/JVN76024879/index.html | Third Party Advisory |
| https://www.powercms.jp/news/xmlrpc-api-provision-202208.html | Patch Vendor Advisory |