lakernote EasyAdmin IndexController.java thumbnail server-side request forgery

A vulnerability, which was classified as critical, was found in lakernote EasyAdmin up to 20240315. Affected is the function thumbnail of the file src/main/java/com/laker/admin/module/sys/controller/IndexController.java. The manipulation of the argument url leads to server-side request forgery. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The patch is identified as 23165d8cb569048c531150f194fea39f8800b8d5. It is recommended to apply a patch to fix this issue. VDB-257718 is the identifier assigned to this vulnerability.