EUVD-2026-23686Severity by source
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
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
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
Lifecycle Timeline
8DescriptionCVE.org
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.
AnalysisAI
EyouCMS versions up to 1.7.1 allow high-privileged attackers to upload arbitrary files via manipulation of the filename parameter in the edit_adminlogo function, leading to information disclosure and potential code execution. The vulnerability requires authenticated admin access and is publicly exploitable with proof-of-concept code available on GitHub; the vendor has not responded to disclosure attempts.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an authenticated high-privilege administrative account with access to the admin panel. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 4.7 reflects a network-accessible vulnerability with low attack complexity but high privilege requirements (PR:H), resulting in low impact across confidentiality, integrity, and availability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated administrator account (either legitimate but compromised via credential theft, or a rogue insider) accesses the EyouCMS admin panel and navigates to the logo edit functionality. The attacker manipulates the filename parameter in the edit_adminlogo function request to bypass file type or location restrictions, uploading a malicious PHP file or accessing sensitive files through path traversal. … |
| Remediation | No patched version has been confirmed by the vendor at this time. … Detailed patch versions, workarounds, and compensating controls in full report. |
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