High severity · published Jun 23, 2021
CVE-2021-28976
Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess
7.2
CVSS
7.5%
EPSS
No
On KEV
Description
Remote Code Execution vulnerability in GetSimpleCMS before 3.3.16 in admin/upload.php via phar filess.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.5% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GE
Getsimplecms · Get-simple
before 3.3.15 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-28976
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-28976
Third Party Advisory
https://github.com/GetSimpleCMS/GetSimpleCMS/issues/1335
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