Opencti · Opencti · CVE-2025-24887
**Name of the Vulnerable Software and Affected Versions**
OpenCTI versions 6.4.8 through 6.4.9
**Description**
The issue allows a user to bypass allow/deny lists and modify attributes that are intended to be unmodifiable. This includes toggling the `external` flag on/off, changing the own token value for a user, and editing attributes not in the allow list, such as `otp qr` and `otp activated`. If external users exist in the OpenCTI setup with sensitive identity information, this can be used to enumerate existing user accounts as a standard low-privileged user.
**Recommendations**
For OpenCTI versions 6.4.8 through 6.4.9, update to version 6.4.10 to resolve the issue. As a temporary workaround, consider restricting access to the `external` flag and token value modification functionality until the update is applied. Additionally, limit editing capabilities for attributes not in the allow list, such as `otp qr` and `otp activated`, to minimize the risk of exploitation.