Remote Code Execution Vulnerability in GetSimpleCMS by GetSimple
CVE-2021-28976

7.2HIGH

Key Information:

Vendor

Get-simple

Status
Getsimplecms
Vendor
CVE Published:
23 June 2021

What is CVE-2021-28976?

A vulnerability in GetSimpleCMS versions prior to 3.3.16 allows for remote code execution through the 'admin/upload.php' file when handling PHAR files. This issue can potentially be exploited by unauthenticated users, leading to unauthorized access and execution of arbitrary code on the server. It is crucial for users of GetSimpleCMS to upgrade to the latest version to mitigate this risk.

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References

https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1335
x_refsource_MISC

EPSS Score

5% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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