CVE-2025-30064 | BDVDB-2026-291269 Detail

CGMCGM CLININET

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.

Impact#

Per CVSS v4.0: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-912 Hidden Functionality
CWE-347 Improper Verification of Cryptographic Signature

References#

https://cert.pl/en/posts/2025/08/CVE-2025-2313/

Exploit#

No public exploit known

History#

Version 12025-08-27Record published in the CVE List.

Published

Published: 2025-08-27
Last modified: 2025-08-27

Vendor information

Vendor: CGM
Product: CGM CLININET

All CGM vulnerabilities

Score

8.8 High

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 0.3.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 2025.MS2
Fixed
2025.MS2

Scoring System

CVSS v4.0

8.8 High

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

Metric breakdown
Attack Vector	Local
Attack Complexity	High
Attack Requirements	None
Privileges Required	Low
User Interaction	None
Vulnerable System Confidentiality	High
Vulnerable System Integrity	High
Vulnerable System Availability	High
Subsequent System Confidentiality	High
Subsequent System Integrity	High
Subsequent System Availability	High

CVSS v3.1

Not available

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).