Which versions of Muucmf are affected by CVE-2026-4848?

Organizations using A vulnerability should be aware of moderate risk from CVE-2026-4848, a cross-site scripting vulnerability rated CVSS 5.3.

Is there a public PoC exploit available for CVE-2026-4848?

Yes, a public proof-of-concept exploit is available for CVE-2026-4848. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-4848?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Muucmf CVE-2026-4848

Q: What is the CVSS score of CVE-2026-4848?

CVE-2026-4848 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

EUVD-2026-16136 LOW

Cross-site Scripting (XSS) (CWE-79)

2026-03-26 VulDB

XSS Muucmf Dameng100

2.1

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

2.1 LOW

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

5.3 (MEDIUM) 2.1 (LOW)

PoC Detected

Mar 30, 2026 - 13:26 vuln.today

Public exploit code

EUVD ID Assigned

Mar 26, 2026 - 07:15 euvd

EUVD-2026-16136

Analysis Generated

Mar 26, 2026 - 07:15 vuln.today

CVE Published

Mar 26, 2026 - 06:59 nvd

MEDIUM 5.3

DescriptionCVE.org

A vulnerability was determined in dameng100 muucmf 1.9.5.20260309. This affects an unknown function of the file /admin/extend/list.html. Executing a manipulation of the argument Name can lead to cross site scripting. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Muucmf 1.9.5.20260309 contains a cross-site scripting (XSS) vulnerability in the /admin/extend/list.html endpoint where the Name parameter is not properly sanitized, allowing remote attackers to inject malicious scripts. Public exploit code exists for this vulnerability, and no patch is currently available from the vendor despite early notification.

Technical ContextAI

The vulnerability is a reflected or stored cross-site scripting flaw classified under CWE-79 (Improper Neutralization of Input During Web Page Generation), affecting Dameng100 muucmf (cpe:2.3:a:dameng100:muucmf:*:*:*:*:*:*:*:*). The /admin/extend/list.html administrative interface fails to properly encode or validate the Name query or POST parameter before rendering it in the HTML response, permitting injection of arbitrary JavaScript code. This is a classic web application input validation failure where user-supplied data flows directly into the DOM without appropriate output encoding (e.g., HTML entity encoding or Content Security Policy enforcement).

RemediationAI

Contact Dameng100 directly to request a patched version; given vendor non-responsiveness, monitor the official muucmf repository and security mailing lists for updates. In the interim, implement the following compensating controls: restrict access to the /admin path via reverse proxy or firewall to authorized IP ranges only, enforce authentication with strong session tokens and httpOnly/Secure flags, deploy a Web Application Firewall (WAF) with XSS signature rules to filter script injection attempts in the Name parameter, and enable Content Security Policy (CSP) headers set to strict-dynamic to mitigate injected scripts. Consider requiring multi-factor authentication on admin accounts to reduce the likelihood of successful admin-focused XSS exploitation. If a patched version becomes available, upgrade immediately and validate the fix by testing the provided PoC payload.