CVE-2026-6561

MEDIUM

EyouCMS Index.php edit_adminlogo unrestricted upload

Title source: cna

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.

References (4)

Core 4

Core References

Vdb Entry, Technical Description vdb-entry technical-description

VDB-358198 | EyouCMS Index.php edit_adminlogo unrestricted upload

https://vuldb.com/vuln/358198

Signature, Permissions Required signature permissions-required

VDB-358198 | CTI Indicators (IOB, IOC, TTP, IOA)

https://vuldb.com/vuln/358198/cti

Third Party Advisory third-party-advisory

Submit #788038 | Hainan Zanzan Network Technology Co., Ltd. EyouCMS <= v1.7.1 High

https://vuldb.com/submit/788038

Exploit exploit

https://github.com/zzk6th/my-cve-notes/blob/main/EyouCMS%20Arbitrary%20File%20Copy%20Vulnerability%20in%20edit_adminlogo()%20Leading%20to%20Sensitive%20Information%20Disclosure.md

View Exploit ZIP pw:eip

Scores

CVSS v3 4.7

EPSS 0.0028

EPSS Percentile 19.4%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-284 CWE-434

Status published

Products (2)

None/EyouCMS 1.7.0

None/EyouCMS 1.7.1

Published Apr 19, 2026

Tracked Since Apr 19, 2026