A vulnerability was found in Cleo Harmony up to 5.8.1.10. The affected element is an unknown function of the file /api/connections of the component JWT Refresh Token Handler. Performing a manipulation of the argument Bearer results in improper privilege management. The attack is possible to be carried out remotely. The exploit has been made public and could be used. Upgrading to version 5.8.1.11 is sufficient to fix this issue. It is recommended to upgrade the affected component.

A vulnerability was identified in Cleo Harmony versions up to 5.8.1.10 affecting the JWT Refresh Token Handler component at the /api/connections endpoint. The flaw involves improper privilege management triggered by manipulation of the Bearer argument, potentially allowing unauthorized privilege escalation. The vulnerability is remotely exploitable and a public exploit is available, raising the risk of active exploitation. Cleo has released version 5.8.1.11 to address the issue, and users are strongly advised to upgrade immediately. The vulnerability has been documented on NVD and VulDB, with multiple references available for technical details and release notes.