CVE-2026-1203: CRMEB JSON Token LoginServices.php remoteRegister improper authentication
A weakness has been identified in CRMEB up to 5.6.3. The impacted element is the function remoteRegister of the file crmeb/app/services/user/LoginServices.php of the component JSON Token Handler. Executing a manipulation of the argument uid can lead to improper authentication. The attack may be performed from remote. The attack requires a high level of complexity. The exploitability is regarded as difficult. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-1203?
CVE-2026-1203 has a medium severity rating due to improper authentication vulnerabilities.
How do I fix CVE-2026-1203?
To mitigate CVE-2026-1203, update your CRMEB installation to the latest version beyond 5.6.3.
Who is affected by CVE-2026-1203?
Organizations using CRMEB version 5.6.3 or earlier are vulnerable to CVE-2026-1203.
What specifically is vulnerable in CVE-2026-1203?
CVE-2026-1203 targets the remoteRegister function in LoginServices.php, which allows unauthorized registration.
What are the potential impacts of CVE-2026-1203?
Exploitation of CVE-2026-1203 could lead to unauthorized user accounts being created in the CRMEB system.