Home/CVE/SiteServer CMS < V5.1 is affected by an unrestricted upload of a file with dangerous type (getshell), which could be use
CVE

CVE-2021-42654

SiteServer CMS < V5.1 is affected by an unrestricted upload of a file with dangerous type (getshell), which could be use

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.

CRITICAL · CVSS 9.8 EPSS 0.00946
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-434Unrestricted Upload of File with Dangerous Type
▤

Affected Products & Versions

1
sscms siteserver cms< 5.1
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 May 2022 · 01:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/siteserver/cmsProductThird Party Advisory
https://github.com/siteserver/cms/issues/3236Issue TrackingThird Party Advisory
https://github.com/siteserver/cms/releases/download/siteserver-dev-v5.0.92/siteserver_install.zipPatchThird Party Advisory
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