What is CVE-2020-13442?

CVE-2020-13442 is a critical-severity vulnerability in Dext5, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-05-25.

How severe is CVE-2020-13442?

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

Arbitrary file upload in Dext5

CVE-2020-13442

A Remote code execution vulnerability exists in DEXT5Upload in DEXT5 through 2.7.1402870. An attacker can upload a PHP file via dext5handler.jsp handler because the uploaded file is stored under dext5uploadeddata/.

Vulnerability class: Unrestricted File Upload

Published 2020-05-25 · 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: 0.026 (85.1th percentile), scored 2026-10-03.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Dext5

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

github.com/kbgsft/vuln-dext5upload/wiki/File-Upload-to-RCE-in-DEXT5Upload-2.7.1… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-13442?: CVE-2020-13442 is a critical-severity vulnerability in Dext5, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-05-25.
How severe is CVE-2020-13442?: Critical severity. CVSS v3 base score is 9.8 out of 10.