CVE-2019-17352: Unrestricted Upload of File with Dangerous Type

October 8, 2019 (updated October 15, 2019)

In JFinal cos before, 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.

References

gitee.com/jfinal/cos/commit/5eb23d6e384abaad19faa7600d14c9a2f525946a
gitee.com/jfinal/cos/commit/8d26eec61f0d072a68bf7393cf3a8544a1112130
nvd.nist.gov/vuln/detail/CVE-2019-17352

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