Beijing Yunfan Internet Technology · Yunfan Learning Examination System · CVE-2024-13111
**Name of the Vulnerable Software and Affected Versions**
Beijing Yunfan Internet Technology Yunfan Learning Examination System version 1.9.2
**Description**
A critical vulnerability was found in the Beijing Yunfan Internet Technology Yunfan Learning Examination System. The issue affects an unknown functionality of the file `src/main/java/com/yf/exam/modules/sys/user/controller/SysUserControl` of the JWT Token Handler component, leading to improper authentication. The attack can be launched remotely, with a rather high complexity, making exploitation difficult. The exploit has been disclosed to the public and may be used.
**Recommendations**
For version 1.9.2, consider temporarily disabling the JWT Token Handler component until a patch is available. Restrict access to the `src/main/java/com/yf/exam/modules/sys/user/controller/SysUserControl` file to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.