CVE-2021-28976 : Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/uploa

Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.

Published 2021-06-23 13:15:08

Updated 2021-06-28 19:55:52

Source MITRE

View at NVD, CVE.org

Vulnerability category: Execute code

Products affected by CVE-2021-28976

Get-simple » Getsimplecms
Versions before (<) 3.3.15
cpe:2.3:a:get-simple:getsimplecms:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.31%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 67 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.5	MEDIUM	AV:N/AC:L/Au:S/C:P/I:P/A:P	8.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
7.2	HIGH	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H	1.2	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-434 Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

Assigned by: nvd@nist.gov (Primary)

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

Before GetSimpleCMS 3.3.16 version upload.php allowed to upload executable files lead to RCE · Issue #1335 · GetSimpleCMS/GetSimpleCMS · GitHub
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