Arbitrary file upload in N/a

CVE-2026-75331

tamguo 1.5.3 is vulnerable to Unrestricted File Upload Leading to Stored XSS. The /uploadFile and /imgUpload endpoints in FileUploadController.java and UEditorController.java have no file type validation. Attackers can upload arbitrary HTML/JavaScript files to the server.

Vulnerability class: Unrestricted File Upload

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (12.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 12.3% 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-2026-75331: held from 0.001 to 0.002.

EPSS over last 30 days · oldest: 0.001 · newest: 0.002 · change: +0.001

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-75331?
CVE-2026-75331 is a medium-severity vulnerability in N/a, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 4.6/10. Published 2026-08-26.
How severe is CVE-2026-75331?
Medium severity. CVSS v3 base score is 4.6 out of 10.