Unrestricted File Upload Vulnerability in SiteServer CMS
CVE-2021-42654

9.8CRITICAL

Key Information:

Vendor

Sscms

Status
Siteserver Cms
Vendor
CVE Published:
24 May 2022

What is CVE-2021-42654?

SiteServer CMS versions earlier than V5.1 have a vulnerability that allows an attacker to upload malicious files. This flaw enables the execution of arbitrary code through unrestricted file uploads, potentially compromising the web server and sensitive data. Administrators should update their systems to the latest version to mitigate this risk and enhance security.

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References

https://github.com/siteserver/cms
x_refsource_MISC
https://github.com/siteserver/cms/issues/3236
x_refsource_MISC
https://github.com/siteserver/cms/releases/download/sites...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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