CVE-2019-11401: Unrestricted Upload of File with Dangerous Type

April 22, 2019 (updated April 24, 2019)

A issue was discovered in SiteServer CMS It allows remote attackers to execute arbitrary code because an administrator can add the permitted file extension .aassp, which is converted to .asp because the “as” substring is deleted.

References

github.com/siteserver/cms/issues/1858
nvd.nist.gov/vuln/detail/CVE-2019-11401

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