What is CVE-2020-25537?

CVE-2020-25537 is a critical-severity vulnerability in Ucms Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-11-30.

How severe is CVE-2020-25537?

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

Arbitrary file upload in Ucms Project

CVE-2020-25537

File upload vulnerability exists in UCMS 1.5.0, and the attacker can take advantage of this vulnerability to obtain server management permission.

Vulnerability class: Unrestricted File Upload

Published 2020-11-30 · 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: 0.019 (78.4th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000

Affected products

Ucms Project — versions 1.5.0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

sunian19.github.io/2020/09/11/UCMS v1.5.0 Arbitrary file upload vulnerability/ (Exploit, Third Party Advisory)
github.com/BigTiger2020/UCMS/blob/main/UCMS v1.5.0 Arbitrary file upload vulner… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-25537?: CVE-2020-25537 is a critical-severity vulnerability in Ucms Project, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2020-11-30.
How severe is CVE-2020-25537?: Critical severity. CVSS v3 base score is 9.8 out of 10.