Arbitrary file upload in Eyoucms
CVE-2026-1107
A weakness has been identified in EyouCMS up to 1.7.1/5.0. Impacted is the function check_userinfo of the file Diyajax.php of the component Member Avatar Handler. Executing a manipulation of the argument viewfile can lead to unrestricted upload. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
EPSS: 0.005 (38.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Eyoucms — versions 1.7.0, 1.7.1, 5.0
- N/a Eyoucms — versions 1.7.0, 1.7.1, 5.0
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (broken-link, Broken Link)
- cna@vuldb.com (exploit, broken-link, Broken Link)
Frequently asked questions
- What is CVE-2026-1107?
- CVE-2026-1107 is a medium-severity vulnerability in Eyoucms, classified under Improper Access Control. CVSS score: 6.3/10. Published 2026-01-18.
- How severe is CVE-2026-1107?
- Medium severity. CVSS v3 base score is 6.3 out of 10.