CVE-2021-28976 File upload in n/a

High 7.2 Published Updated

Attackers can achieve remote code execution by uploading malicious phar files to the admin upload interface.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-28976?

CVE-2021-28976 is a high-severity vulnerability in n/a, published on 23 Jun 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

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

Weakness: CWE-434

Which versions are affected by CVE-2021-28976?

It affects 1 product.

Products include Get-Simple Getsimplecms.

How do I fix CVE-2021-28976?

No fix has been published for CVE-2021-28976 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-28976 being exploited?

There is no known exploitation of CVE-2021-28976 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-g2wx-83fr-2mf4.

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