Yonyou U8 Cloud up to 5.1sp Request Header NCloudGatewayServlet ts/sign unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.65

Summaryinfo

A vulnerability identified as critical has been detected in Yonyou U8 Cloud up to 5.1sp. This affects an unknown function of the file /service/NCloudGatewayServlet of the component Request Header Handler. Performing a manipulation of the argument ts/sign results in unrestricted upload. This vulnerability is cataloged as CVE-2025-12344. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability classified as critical has been found in Yonyou U8 Cloud up to 5.1sp. This affects some unknown functionality of the file /service/NCloudGatewayServlet of the component Request Header Handler. The manipulation of the argument ts/sign with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-12344. The exploitability is told to be easy. It is possible to initiate the attack remotely. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

The exploit is shared for download at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-36388). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.3
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

10/27/2025 Advisory disclosed
10/27/2025 +0 days VulDB entry created
10/28/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2025-12344 (🔒)
GCVE (CVE): GCVE-0-2025-12344
GCVE (VulDB): GCVE-100-330129
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/27/2025 15:03
Updated: 10/28/2025 10:42
Changes: 10/27/2025 15:03 (58), 10/28/2025 04:29 (1), 10/28/2025 10:42 (30)
Complete: 🔍
Submitter: IceSc0rpion
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #674532: yonyon U8 Cloud V2.0/V2.1/V2.3/V2.5/V2.6/V2.7/V2.65/V3.0/V3.1/V3.2/V3.5/V3.6/V3.6sp/V5.0/V5.0sp/V5.1/V5.1sp File upload (by IceSc0rpion)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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