CVE-2025-9400

YiFang CMS P_file.php mergeMultipartUpload unrestricted upload

State: Published
Severity: 5.3 Medium
Published: Aug 25, 2025
Updated: Aug 25, 2025
Reserved: Aug 24, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-434 Unrestricted Upload
CWE-284 Improper Access Controls

Affected Products

Product	Versions
CMSYiFang	2.0.0Affected 2.0.1Affected 2.0.2Affected 2.0.3Affected 2.0.4Affected 2.0.5Affected

References

VDB-321236 | YiFang CMS P_file.php mergeMultipartUpload unrestricted uploadvdb-entrytechnical-description
VDB-321236 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
Submit #632535 | YiFang CMS 2.0.5 Unrestricted Uploadthird-party-advisory
https://github.com/August829/Yu/blob/main/20250811_3.mdrelated
https://github.com/August829/Yu/blob/main/20250811_3.md#pocexploit

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