CVE-2021-47819 ProjeQtOr Project Management 9.1.4 - Remote Code Execution

Critical 9.3 Published Updated

Guest users can upload malicious PHP files to achieve remote code execution in ProjeQtOr Project Management.

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

What is CVE-2021-47819?

CVE-2021-47819 is a critical vulnerability in ProjeQtOr Project Management, published on 15 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ProjeQtOr Project Management 9.1.4 contains a file upload vulnerability that allows guest users to upload malicious PHP files with arbitrary code execution capabilities. Attackers can upload a PHP script through the profile attachment section and execute system commands by accessing the uploaded file with a specially crafted request parameter.

Weakness: CWE-434

Which versions are affected by CVE-2021-47819?

How do I fix CVE-2021-47819?

No fix has been published for CVE-2021-47819 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-47819 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47819 exists.

Sources

Also known as GHSA-wh46-xj24-hh5q.

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