Log in Start free

Vulnerability · Published Oct 28, 2025 · Assigned by VulDB

CVE-2025-12344Yonyou U8 Cloud Request Header NCloudGatewayServlet unrestricted upload

Medium 6.3

In plain English

A medium-severity unrestricted file upload in U8 Cloud from Yonyou. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.3%top 82.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in Yonyou U8 Cloud up to 5.1sp. The impacted element is an unknown function of the file /service/NCloudGatewayServlet of the component Request Header Handler. Such manipulation of the argument ts/sign leads to unrestricted upload. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

VendorProductVersions
Yonyou U8 Cloud 2.02.12.32.52.62.72.653.0

Weakness: CWE-434, CWE-284 · 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

References