Arbitrary file upload in Eyoucms
CVE-2026-6561
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…
EPSS: 0.000 (3.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
Affected products
- N/a Eyoucms — versions 1.7.0, 1.7.1
Weakness classification (CWE)
References
- VDB-358198 | EyouCMS Index.php edit_adminlogo unrestricted upload (technical-description, vdb-entry)
- 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)
- cna@vuldb.com (exploit)
Frequently asked questions
- What is CVE-2026-6561?
- CVE-2026-6561 is a medium-severity vulnerability in Eyoucms, classified under Improper Access Control. CVSS score: 4.7/10. Published 2026-04-19.
- How severe is CVE-2026-6561?
- Medium severity. CVSS v3 base score is 4.7 out of 10.