Arbitrary file upload in Max-3000 Maxsite_cms
CVE-2025-12346
A vulnerability was detected in MaxSite CMS up to 109. This vulnerability affects unknown code of the file application/maxsite/admin/plugins/auto_post/uploads-require-maxsite.php of the component HTTP Header Handler. Performing manipulatio…
EPSS: 0.001 (15.9th 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
- Max-3000 Maxsite_cms
- Maxsite Cms — versions 109
Weakness classification (CWE)
Public proof-of-concept exploits
References
- VDB-330136 | MaxSite CMS HTTP Header uploads-require-maxsite.php unrestricted upload (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-330136 | CTI Indicators (IOB, IOC, TTP, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #674551 | MaxSite CMS 109 arbitrary file writing (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2025-12346?
- CVE-2025-12346 is a medium-severity vulnerability in Max-3000 Maxsite_cms, classified under Improper Access Control. CVSS score: 6.3/10. Published 2025-10-28.
- How severe is CVE-2025-12346?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2025-12346 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.