Arbitrary file upload in Employee Records System
CVE-2021-4462
Employee Records System version 1.0 contains an unrestricted file upload vulnerability that allows a remote unauthenticated attacker to upload arbitrary files via the uploadID.php endpoint; uploaded files can be executed because the application does not perform proper server-side validation. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.
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: 0.032 (87.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 87.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.032 · newest: 0.032 · change: 0.000
Affected products
- Employee Records System — versions 1.0
- Skittles Employee Records System — versions 1.0
Weakness classification (CWE)
References
- www.sourcecodester.com/php/11393/employee-records-system.html (Product, product)
- www.exploit-db.com/exploits/49596 (Exploit, exploit)
- www.vulncheck.com/advisories/employees-records-system-arbitrary-file-upload-rce (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2021-4462?
- CVE-2021-4462 is a critical-severity vulnerability in Employee Records System, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2025-11-10.
- How severe is CVE-2021-4462?
- Critical severity. CVSS v3 base score is 9.8 out of 10.