What is CVE-2021-28294?

CVE-2021-28294 is a critical-severity vulnerability in Online Ordering System Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-03-16.

How severe is CVE-2021-28294?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Online Ordering System Project

CVE-2021-28294

Online Ordering System 1.0 is vulnerable to arbitrary file upload through /onlineordering/GPST/store/initiateorder.php, which may lead to remote code execution (RCE).

Vulnerability class: Unrestricted File Upload

Published 2021-03-16 · last modified 2026-06-17.

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: 0.037 (89.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000

Affected products

Online Ordering System Project — versions 1.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

www.exploit-db.com/exploits/49615 (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2021-28294?: CVE-2021-28294 is a critical-severity vulnerability in Online Ordering System Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-03-16.
How severe is CVE-2021-28294?: Critical severity. CVSS v3 base score is 9.8 out of 10.