What is the CVSS score of CVE-2025-29287?

CVE-2025-29287 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.6%.

Which versions of Mcms are affected by CVE-2025-29287?

Organizations using the ueditor component of MCMS face critical risk from CVE-2025-29287, a unrestricted file upload vulnerability rated CVSS 9.8.. A patch is available.

Is there a public PoC exploit available for CVE-2025-29287?

Yes, a public proof-of-concept exploit is available for CVE-2025-29287. Prioritise patching immediately. EPSS: 1.6%.

How to fix or mitigate CVE-2025-29287?

Within 24 hours: Identify all affected systems running the ueditor component of MCMS and apply vendor patches immediately. Review file handling controls and restrict upload directories.

Mcms CVE-2025-29287

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2025-04-21 cve@mitre.org

RCE File Upload Mcms

9.8

CVSS 3.1 · Vendor: mitre

Severity by source

Vendor (mitre) PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from Vendor (mitre) · only source for this CVE.

CVSS VectorVendor: mitre

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 28, 2026 - 18:38 vuln.today

PoC Detected

Apr 24, 2025 - 16:37 vuln.today

Public exploit code

CVE Published

Apr 21, 2025 - 15:15 nvd

CRITICAL 9.8

DescriptionCVE.org

An arbitrary file upload vulnerability in the ueditor component of MCMS v5.4.3 allows attackers to execute arbitrary code via uploading a crafted file.

AnalysisAI

An arbitrary file upload vulnerability in the ueditor component of MCMS v5.4.3 allows attackers to execute arbitrary code via uploading a crafted file. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. An arbitrary file upload vulnerability in the ueditor component of MCMS v5.4.3 allows attackers to execute arbitrary code via uploading a crafted file. Affected products include: Mingsoft Mcms.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.