Arbitrary file upload in Greencms
CVE-2026-7044
A vulnerability was found in GreenCMS up to 2.3. Affected is the function themeadd of the file /index.php?m=admin&c=custom&a=themeadd. The manipulation results in unrestricted upload. The attack can be launched remotely. The exploit has be…
EPSS: 0.000 (13.7th 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
- N/a Greencms — versions 2.0, 2.1, 2.2
Weakness classification (CWE)
References
- VDB-359623 | GreenCMS index.php themeadd unrestricted upload (technical-description, vdb-entry)
- VDB-359623 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, permissions-required)
- Submit #798530 | https://github.com/GreenCMS/GreenCMS GreenCMS v2.3 arbitrary file deletion (third-party-advisory)
- cna@vuldb.com (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-7044?
- CVE-2026-7044 is a medium-severity vulnerability in Greencms, classified under Improper Access Control. CVSS score: 6.3/10. Published 2026-04-26.
- How severe is CVE-2026-7044?
- Medium severity. CVSS v3 base score is 6.3 out of 10.