TI-2021-04064 Aliases CVE-2021-20850 GHSA-cw2g-2q23-x8ff

OS command injection in Alfasado Inc. PowerCMS XMLRPC API

MEDIUM 45CWE-78Published 2021-11-24 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

PowerCMS XMLRPC API of PowerCMS 5.19 and earlier, PowerCMS 4.49 and earlier, PowerCMS 3.295 and earlier, and PowerCMS 2 Series (End-of-Life, EOL) allows a remote attacker to execute an arbitrary OS command via unspecified vectors.

Why it matters now

EPSS 0.01535 74th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Alfasado Inc.	PowerCMS XMLRPC API	PowerCMS 5.19 and earlier, PowerCMS 4.49 and earlier, PowerCMS 3.295 and earlier, PowerCMS 2 Series (End-of-Life, EOL)	—	No fix listed	CNA

PowerCMS XMLRPC API VendorAlfasado Inc. Affected PowerCMS 5.19 and earlier, PowerCMS 4.49 and earlier, PowerCMS 3.295 and earlier, PowerCMS 2 Series (End-of-Life, EOL) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:alfasado:powercms::::::::	2.0 – 2.058; 3.01 – 3.295; 4.0 – 4.49; 5.0 – 5.19	Vulnerable	Alfasado Inc.

cpe:2.3:a:alfasado:powercms:*:*:*:*:*:*:*:* Versions 2.0 – 2.058; 3.01 – 3.295; 4.0 – 4.49; 5.0 – 5.19 Vulnerable ·Alfasado Inc.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-20850
2026-10-03 Alias added: GHSA-cw2g-2q23-x8ff

References

Patch 1

https://www.powercms.jp/news/release-patch-xmlrpc-api-202110.html

Advisory 1

https://jvn.jp/en/jp/JVN17645965/index.html

TI-2022-14944 OS command injection in Alfasado Inc. PowerCMS XMLRPC API CVSS 3.1CRITICAL 9.8
TI-2025-29096 Path traversal in Alfasado Inc. PowerCMS CVSS 4.0HIGH 8.6
TI-2019-04309 Open redirect in Alfasado Inc. PowerCMS CVSS 3.1MEDIUM 6.1
TI-2023-27506 Open redirect in Alfasado Inc. PowerCMS CVSS 3.1MEDIUM 6.1
TI-2025-27573 Path traversal in Alfasado Inc. PowerCMS CVSS 4.0MEDIUM 5.3
TI-2023-26781 Cross-site scripting in Alfasado Inc. PowerCMS CVSS 3.1MEDIUM 5.4

See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences