Arbitrary file upload in Zhangyanbo2007 Youkefu
CVE-2025-4258
A vulnerability, which was classified as critical, was found in zhangyanbo2007 youkefu up to 4.2.0. Affected is the function Upload of the file \youkefu-master\src\main\java\com\ukefu\webim\web\handler\resource\MediaController.java. The manipulation of the argument imgFile leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (32.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Zhangyanbo2007 Youkefu — versions 4.0, 4.1, 4.2.0
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/Fc04dB/VUL/blob/main/ukefu_upload.md (exploit, Broken Link)
Frequently asked questions
- What is CVE-2025-4258?
- CVE-2025-4258 is a medium-severity vulnerability in Zhangyanbo2007 Youkefu, classified under Improper Access Control. CVSS score: 6.3/10. Published 2025-05-05.
- How severe is CVE-2025-4258?
- Medium severity. CVSS v3 base score is 6.3 out of 10.