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CVE-2025-30064— Possibility to generate a session for any user via the "ex:action" parameter after obtaining access to the JWT key

Quick assessment

Affected
CGM CGM CLININET
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CGM CLININET是德国CGM公司的一款医院信息管理系统。 CGM CLININET存在安全漏洞，该漏洞源于decodeParam函数未验证签名算法，可能导致生成任意用户会话。

AI Predicted 9.8 Difficulty: Easy EPSS 0.08% · P0

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-30064

Vulnerability Information
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Vulnerability Title
Possibility to generate a session for any user via the "ex:action" parameter after obtaining access to the JWT key
Source: CVE Program / CVE List V5
Vulnerability Description
An insufficiently secured internal function allows session generation for arbitrary users. The decodeParam function checks the JWT but does not verify which signing algorithm was used. As a result, an attacker can use the "ex:action" parameter in the VerifyUserByThrustedService function to generate a session for any user.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
隐藏功能
Source: CVE Program / CVE List V5
Vulnerability Title
CGM CLININET 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CGM CLININET是德国CGM公司的一款医院信息管理系统。 CGM CLININET存在安全漏洞，该漏洞源于decodeParam函数未验证签名算法，可能导致生成任意用户会话。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
CGM CGM CLININET 0 ~ 2025.MS2 -

II. Public POCs for CVE-2025-30064

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III. Intelligence Information for CVE-2025-30064

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Security Blog Posts for CVE-2025-30064 (1)

Same Patch Batch · CGM · 2025-08-27 · 17 CVEs total

CVE-2025-2313 RCE via Print.pl in uhcPrintServerPrint
CVE-2025-30037 Missing authentication in APIs allowing data retrieval and modification
CVE-2025-30061 SQL injection in utils/Reporter/OpenReportWindow.pl via the UserID parameter
CVE-2025-30039 Missing authentication in API returning a list of all active sessions
CVE-2025-30040 Missing authentication in API returning request logs containing session IDs
CVE-2025-30063 Excessive permissions on configuration files containing database logins and passwords
CVE-2025-30036 Stored XSS permitting session takeover of arbitrary user
CVE-2025-30056 Calling system commands via RunCommand
CVE-2025-30058 SQL injection in getPatientIdentifier function of PatientService.pl
CVE-2025-30060 SQL injection in ReturnUserUnitsXML.pl via the UserID parameter
CVE-2025-30048 Unauthenticated access to module configuration endpoint
CVE-2025-30038 Session ID leakage in Zone.Identifier of downloaded files
CVE-2025-30057 Authenticated RCE with uhcapache privileges in ConvertToPDF
CVE-2025-30059 Authenticated SQL injection in PrepareCDExportJSON.pl
CVE-2025-30041 Missing authentication in APIs returning statistical data along with session IDs
CVE-2025-30055 Conditional RCE via the "system" function

IV. Related Vulnerabilities

Same product: CGM CLININET
Same vendor: CGM
Same weakness: CWE-912

V. Comments for CVE-2025-30064

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