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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Wanglongcn
  • Yifang

No data.

No data.

References
Link Providers
https://github.com/August829/Yu/blob/main/20250811_3.md cve-icon cve-icon
https://github.com/August829/Yu/blob/main/20250811_3.md#poc cve-icon cve-icon
https://vuldb.com/?ctiid.321236 cve-icon cve-icon
https://vuldb.com/?id.321236 cve-icon cve-icon
https://vuldb.com/?submit.632535 cve-icon cve-icon
History

Mon, 25 Aug 2025 21:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 25 Aug 2025 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Wanglongcn
Wanglongcn yifang
Vendors & Products Wanglongcn
Wanglongcn yifang

Mon, 25 Aug 2025 00:45:00 +0000

Type Values Removed Values Added
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.
Title YiFang CMS P_file.php mergeMultipartUpload unrestricted upload
Weaknesses CWE-284
CWE-434
References
Metrics cvssV2_0

{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 6.3, 'vector': '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'}

cvssV3_1

{'score': 6.3, 'vector': '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'}

cvssV4_0

{'score': 5.3, 'vector': '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2025-08-25T00:32:06.112Z

Updated: 2025-08-25T20:29:09.150Z

Reserved: 2025-08-24T14:47:38.982Z

Link: CVE-2025-9400

cve-icon Vulnrichment

Updated: 2025-08-25T20:29:02.085Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-08-25T01:15:36.703

Modified: 2025-08-25T20:24:45.327

Link: CVE-2025-9400

cve-icon Redhat

No data.