CVE-2025-12346: MaxSite CMS HTTP Header uploads-require-maxsite.php unrestricted upload
A vulnerability was detected in MaxSite CMS up to 109. This vulnerability affects unknown code of the file application/maxsite/admin/plugins/autopost/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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-12346?
CVE-2025-12346 is classified as a high severity vulnerability affecting MaxSite CMS versions up to 109.
How do I fix CVE-2025-12346?
To fix CVE-2025-12346, upgrade MaxSite CMS to the latest version beyond 109.
What components are affected by CVE-2025-12346?
CVE-2025-12346 affects the HTTP Header Handler in the file application/maxsite/admin/plugins/auto_post/uploads-require-maxsite.php.
What kind of attacks can CVE-2025-12346 facilitate?
CVE-2025-12346 can facilitate manipulation of the X-Requested-FileName or X-Requ headers, potentially leading to unauthorized access.
Is there a proof of concept available for CVE-2025-12346?
Yes, there are known proof of concept exploits that demonstrate the impact of CVE-2025-12346.