CVE-2025-9400

HighCVSS 8.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-284 CWE-434

Affected software

Vendor	Product	Versions
YiFang	CMS	2.0.0; 2.0.1; 2.0.2; 2.0.3; 2.0.4; 2.0.5

References

https://github.com/August829/Yu/blob/main/20250811_3.mdBroken Link
https://github.com/August829/Yu/blob/main/20250811_3.md#pocBroken Link
https://vuldb.com/?ctiid.321236Permissions Required, VDB Entry
https://vuldb.com/?id.321236Third Party Advisory, VDB Entry
https://vuldb.com/?submit.632535Third Party Advisory, VDB Entry

Timeline

Published: Aug 25, 2025
Last modified: Jun 17, 2026
NVD status: Analyzed

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