Is CVE-2026-6561 actively exploited?

CVE-2026-6561 has no public evidence of in-the-wild exploitation as of 2026-04-19.

What is the CVSS score for CVE-2026-6561?

CVE-2026-6561 has a CVSS score of 5.1 (MEDIUM severity). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/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.

How do I patch CVE-2026-6561?

Vendor patch guidance is linked from the references on this page. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-6561.

Which products are affected by CVE-2026-6561?

Affected products for CVE-2026-6561 are listed on this page once vendor data becomes available.

CVE-2026-6561 - remediation guidance & executive summary

Description

A vulnerability was detected in EyouCMS up to 1.7.1. This issue affects the function edit_adminlogo of the file application/admin/controller/Index.php. Performing a manipulation of the argument filename results in unrestricted upload. The attack is possible to be carried out remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/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
Complexity: low
Privileges: high
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-284 CWE-434 · Unrestricted File Upload

Metadata

Primary Vendor: UNKNOWN
Published: 4/19/2026
Last Modified: 4/19/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-6561

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary