CVE-2025-9400 YiFang CMS P_file.php mergeMultipartUpload unrestricted upload
Remote attackers can upload arbitrary files via the mergeMultipartUpload function in YiFang CMS, 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-2025-9400?
CVE-2025-9400 is a medium-severity vulnerability in YiFang CMS, published on 25 Aug 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 YiFang CMS up to 2.0.5. This affects the function mergeMultipartUpload of the file app/utils/base/plugin/P_file.php. This manipulation of the argument File causes unrestricted upload. Remote exploitation of the attack is possible. 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-2025-9400?
It affects 1 product.
Products include Wanglongcn Yifang.
How do I fix CVE-2025-9400?
No fix has been published for CVE-2025-9400 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-9400 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9400 exists.
Other vulnerabilities in YiFang CMS
- CVE-2025-45887 Server-side request forgery in n/a
- CVE-2025-9398 YiFang CMS Migrate.php exportInstallTable information disclosure
- CVE-2025-9399 YiFang CMS L_tool.php sql injection
- CVE-2025-11136 YiFang CMS Backend File.php webUploader unrestricted upload
- CVE-2025-5381 Yifang CMS Admin Panel downloadFile path traversal
Sources
Also known as GHSA-5q3f-j5cg-9xmv.