Arbitrary file upload in Projeqtor Project Management
CVE-2021-47819
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.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Projeqtor Project Management — versions 9.1.4
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49919 (exploit)
- www.projeqtor.org (product)
Frequently asked questions
- What is CVE-2021-47819?
- CVE-2021-47819 is a critical-severity vulnerability in Projeqtor Project Management, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-01-15.
- How severe is CVE-2021-47819?
- Critical severity. CVSS v3 base score is 9.8 out of 10.