What is CVE-2020-19303?

CVE-2020-19303 is a high-severity vulnerability in Houdunren Hdcms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.8/10. Published 2021-08-03.

How severe is CVE-2020-19303?

High severity. CVSS v3 base score is 7.8 out of 10.

Is CVE-2020-19303 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Houdunren Hdcms

CVE-2020-19303

An arbitrary file upload vulnerability in /fileupload.php of hdcms 5.7 allows attackers to execute arbitrary code via a crafted file.

Vulnerability class: Unrestricted File Upload

Published 2021-08-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.0th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Houdunren Hdcms — versions 5.7

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

MRdoulestar/MRdoulestar

References

github.com/houdunwang/hdcms/issues/6 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-19303?: CVE-2020-19303 is a high-severity vulnerability in Houdunren Hdcms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.8/10. Published 2021-08-03.
How severe is CVE-2020-19303?: High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2020-19303 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.