Disclosure summary
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 manipulation of the argument X-Requested-FileName/X-Requested-FileUpDir results in unrestricted upload. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source-reported weakness categories
CWE-284, CWE-434
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2025-12346
Open original source · Updated Oct 08, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| max-3000 | maxsite_cms | * {"versionEndIncluding":"109"} |
Original records & references
- NIST NVD record
- CVE Program record
- note-hxlab.wetolink.com — Exploit, Third Party Advisory
- vuldb.com — Permissions Required, VDB Entry
- vuldb.com — Third Party Advisory, VDB Entry
- vuldb.com — Third Party Advisory, VDB Entry
PUBLISHED 2025-10-27T23:15:33-04:00
MODIFIED 2026-10-08T07:10:00-04:00
INGESTED 2026-10-08T12:35:13-04:00