File Upload Bypass Vulnerability in JFinal cos before 2019-08-13

CVE-2019-17352 · HIGH Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

In JFinal cos before 2019-08-13, as used in JFinal 4.4, there is a vulnerability that can bypass the isSafeFile() function: one can upload any type of file. For example, a .jsp file may be stored and almost immediately deleted, but this deletion step does not occur for certain exceptions.

Learn more about our Web Application Penetration Testing UK.