Vulnerability · Published Apr 19, 2026 · Assigned by VulDB

CVE-2026-6561EyouCMS Index.php edit_adminlogo unrestricted upload

Medium 4.7

In plain English

A medium-severity unrestricted file upload in EyouCMS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.1)4.7Medium

Exploit odds (30 days)0.3%top 79.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	EyouCMS	1.7.01.7.1

Weakness: CWE-434, CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References

VDB-358198 | EyouCMS Index.php edit_adminlogo unrestricted upload vdb-entry, technical-description
VDB-358198 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #788038 | Hainan Zanzan Network Technology Co., Ltd. EyouCMS <= v1.7.1 High third-party-advisory
https://github.com/zzk6th/my-cve-notes/blob/main/EyouCMS%20Arbitrary%20File%20Copy%20Vulnerability%20in%20edit_adminlogo()%20Leading%20to%20Sensitive%20Information%20Disclosure.md exploit