High severity · published Aug 27, 2025
CVE-2025-30064
Possibility to generate a session for any user via the "ex:action" parameter after obtaining access to the JWT key
8.8
CVSS
0.1%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 0% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
CGM CLININET · CGM
before 2025.MS2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-30064
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-30064
cert.pl
https://cert.pl/en/posts/2025/08/CVE-2025-2313/
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