CVE-2026-4845 dameng100 muucmf index.html cross site scripting
Remote attackers can execute arbitrary scripts via the Search argument in the admin member index page of muucmf.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-4845?
CVE-2026-4845 is a medium-severity cross-site scripting vulnerability in dameng100 muucmf, published on 26 Mar 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2026-4845?
How do I fix CVE-2026-4845?
No fix has been published for CVE-2026-4845 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-4845 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4845 exists.
Sources
Also known as GHSA-39hw-jm9g-6r53.