CVE-2025-30064CWE-347CWE-912

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

High · published August 27, 2025

CVSS v4.0
8.8
EPSS
0%
Percentile
0.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.8 · HIGH
Vector
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
EPSS
0.00085 · 0.3th percentile
Weaknesses
CWE-347 · Improper Verification of Cryptographic Signature; CWE-912 · Hidden Functionality
Published
2025-08-27T10:25Z
EPSS history
Timeline
  • 27 AUG 10:25Z
    Possibility to generate a session for any user via the "ex:action" parameter after obtaining access to the JWT key
    cvelistv5