CVE-2025-9400

Public Exploit
YiFang CMS P_file.php mergeMultipartUpload unrestricted upload

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.

Category

5.3
CVSS
Severity: Medium
CVSS 4.0 •
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Third-Party Advisory vuldb.com
Affected: YiFang CMS
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.321236 technical description vdb entry
https://vuldb.com/?ctiid.321236 signature permissions required
https://vuldb.com/?submit.632535 third party advisory
https://github.com/August829/Yu/blob/main/20250811_3.md related
https://github.com/August829/Yu/blob/main/20250811_3.md#poc exploit

Frequently Asked Questions

What is the severity of CVE-2025-9400?
CVE-2025-9400 has been scored as a medium severity vulnerability.
How to fix CVE-2025-9400?
To fix CVE-2025-9400, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-9400 being actively exploited in the wild?
It is possible that CVE-2025-9400 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-9400?
CVE-2025-9400 affects YiFang CMS.
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