CVE-2025-12347 MaxSite CMS save-file-ajax.php unrestricted upload
Remote attackers with permissions can upload arbitrary files via the editor_files plugin, potentially leading to code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-12347?
CVE-2025-12347 is a medium-severity vulnerability in MaxSite CMS, published on 28 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in MaxSite CMS up to 109. This issue affects some unknown processing of the file application/maxsite/admin/plugins/editor_files/save-file-ajax.php. Executing manipulation of the argument file_path/content can lead to unrestricted upload. The attack can be executed remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-12347?
It affects 1 product.
Products include Max-3000 Maxsite Cms.
How do I fix CVE-2025-12347?
No fix has been published for CVE-2025-12347 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-12347 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-12347 exists.
Other vulnerabilities in MaxSite CMS
Sources
Also known as GHSA-q9xr-p2gm-7fm6.