CVSS v3
8.8
HIGH
EPSS Score
77.9%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
An unrestricted file upload issue in FlexDotnetCMS before v1.5.9 allows an authenticated remote attacker to upload and execute arbitrary files by using the FileManager to upload malicious code (e.g., ASP code) in the form of a safe file type (e.g., a TXT file), and then using the FileEditor (in v1.5.8 and prior) or the FileManager's rename function (in v1.5.7 and prior) to rename the file to an executable extension (e.g., ASP), and finally executing the file via an HTTP GET request to /<path_to_file>.
An unrestricted file upload issue in FlexDotnetCMS before v1.5.9 allows an authenticated remote attacker to upload and execute arbitrary files by using the FileManager to upload malicious code (e.g., ASP code) in the form of a safe file type (e.g., a TXT file), and then using the FileEditor (in v1.5.8 and prior) or the FileManager's rename function (in v1.5.7 and prior) to rename the file to an executable extension (e.g., ASP), and finally executing the file via an HTTP GET request to /<path_to_file>.
Active exploitation of CVE-2020-27386 has not been confirmed. The EPSS score is 77.9%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2020-27386 has a CVSS v3 base score of 8.8 (HIGH severity).
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Ranked by exploit probability (EPSS).