CVE-2025-12347: MaxSite CMS save-file-ajax.php unrestricted upload

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-10-28 · updated 2026-10-08
Weakness: CWE-284

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.

Affected products

MaxSite CMS: through 109

References

https://note-hxlab.wetolink.com/share/lIWZkTHQPSVh
https://vuldb.com/?ctiid.330137
https://vuldb.com/?id.330137
https://vuldb.com/?submit.674552

Get alerted when CVE-2025-12347 or the next vulnerability affects your stack