What is CVE-2026-4845?

CVE-2026-4845 is a medium-severity vulnerability in Dameng100 Muucmf, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-03-26.

How severe is CVE-2026-4845?

Medium severity. CVSS v3 base score is 4.3 out of 10.

RCE in Dameng100 Muucmf

CVE-2026-4845

A flaw has been found in dameng100 muucmf 1.9.5.20260309. Impacted is an unknown function of the file /admin/Member/index.html. This manipulation of the argument Search causes cross site scripting. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-03-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (36.7th percentile), scored 2026-10-02.

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 over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Dameng100 Muucmf — versions 1.9.5.20260309

Weakness classification (CWE)

References

vuldb.com/ (technical-description, vdb-entry)
vuldb.com/ (signature, permissions-required)
vuldb.com/ (third-party-advisory)
thinhneee.github.io/posts/muucmf-xss/ (exploit)

Frequently asked questions

What is CVE-2026-4845?: CVE-2026-4845 is a medium-severity vulnerability in Dameng100 Muucmf, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-03-26.
How severe is CVE-2026-4845?: Medium severity. CVSS v3 base score is 4.3 out of 10.