Vulnerability Details : CVE-2021-20850
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.
Products affected by CVE-2021-20850
- cpe:2.3:a:alfasado:powercms:*:*:*:*:*:*:*:*
- cpe:2.3:a:alfasado:powercms:*:*:*:*:*:*:*:*
- cpe:2.3:a:alfasado:powercms:*:*:*:*:*:*:*:*
- cpe:2.3:a:alfasado:powercms:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20850
0.42%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20850
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-20850
-
The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20850
-
https://jvn.jp/en/jp/JVN17645965/index.html
JVN#17645965: PowerCMS XMLRPC API vulnerable to OS command injectionThird Party Advisory
-
https://www.powercms.jp/news/release-patch-xmlrpc-api-202110.html
PowerCMS 5.19 / 4.49 / 3.295 向けパッチについて (XMLRPC API における OS コマンド・インジェクションの脆弱性対策) | 新着情報 | PowerCMS - カスタマイズする CMS。Patch;Vendor Advisory
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