Arbitrary file upload in Samsung Magicinfo 9 Server

CVE-2026-25200

A vulnerability in MagicInfo9 Server allows authorized users to upload HTML files without authentication, leading to Stored XSS, which can result in account takeover This issue affects MagicINFO 9 Server: less than 21.1090.1.

Vulnerability class: Unrestricted File Upload

Published · last modified .

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: 0.005 (41.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.5% 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-2026-25200: held from 0.005 to 0.005.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-25200?
CVE-2026-25200 is a critical-severity vulnerability in Samsung Magicinfo 9 Server, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-02-02.
How severe is CVE-2026-25200?
Critical severity. CVSS v3 base score is 9.8 out of 10.