Arbitrary file upload in Get-simple Getsimplecms

CVE-2021-28976

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

Vulnerability class: Unrestricted File Upload

EPSS: 0.075 (93.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-28976?
CVE-2021-28976 is a high-severity vulnerability in Get-simple Getsimplecms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2021-06-23.
How severe is CVE-2021-28976?
High severity. CVSS v3 base score is 7.2 out of 10.