CVE-2021-20850 — CRITICAL (9.8)

Q: How severe is CVE-2021-20850?

CVE-2021-20850 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2021-20850?

Check the references section above for vendor advisories and patch information. Affected products include: Alfasado Powercms.

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Alfasado	Powercms	>= 2.0, <= 2.058

Related Weaknesses (CWE)

CWE-78

References

https://jvn.jp/en/jp/JVN17645965/index.htmlThird Party Advisory
https://www.powercms.jp/news/release-patch-xmlrpc-api-202110.htmlPatchVendor Advisory
https://jvn.jp/en/jp/JVN17645965/index.htmlThird Party Advisory
https://www.powercms.jp/news/release-patch-xmlrpc-api-202110.htmlPatchVendor Advisory

FAQ

What is CVE-2021-20850?

CVE-2021-20850 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 co...

How severe is CVE-2021-20850?

CVE-2021-20850 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-20850?

Check the references section above for vendor advisories and patch information. Affected products include: Alfasado Powercms.