Arbitrary file upload in Sunnet Technology Co., Ltd. Wisdom Master Pro

CVE-2025-31339

An unrestricted upload of file with dangerous type vulnerability in the course management function of Wisdom Master Pro versions 5.0 through 5.2 allows remote authenticated users to craft a malicious file.

Vulnerability class: Unrestricted File Upload

Published · last modified .

EPSS exploit prediction

EPSS: 0.004 (36.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-31339: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

References