Vulnerability Details : CVE-2021-42654
SiteServer CMS < V5.1 is affected by an unrestricted upload of a file with dangerous type (getshell), which could be used to execute arbitrary code.
Vulnerability category: Execute code
Products affected by CVE-2021-42654
- cpe:2.3:a:sscms:siteserver_cms:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-42654
0.38%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-42654
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-2021-42654
-
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-42654
-
https://github.com/siteserver/cms/issues/3236
未授权任意文件上传getshell · Issue #3236 · siteserver/cms · GitHubIssue Tracking;Third Party Advisory
-
https://github.com/siteserver/cms/releases/download/siteserver-dev-v5.0.92/siteserver_install.zip
Patch;Third Party Advisory
-
https://github.com/siteserver/cms
GitHub - siteserver/cms: SS CMS 基于 .NET Core,能够以最低的成本、最少的人力投入在最短的时间内架设一个功能齐全、性能优异、规模庞大并易于维护的网站平台。Product;Third Party Advisory
Jump to