What’s Vulnerable › Vulnerabilities

CVE-2025-4258: zhangyanbo2007 youkefu MediaController.java upload unrestricted upload

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-05 · updated 2026-06-17
• Weakness: CWE-284

Description

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.

Affected products

• zhangyanbo2007 youkefu: from 4.0 through 4.2.0

References

• https://github.com/Fc04dB/VUL/blob/main/ukefu_upload.md
• https://vuldb.com/?ctiid.307362
• https://vuldb.com/?id.307362
• https://vuldb.com/?submit.562848

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