CVSS v3
9.8
CRITICAL
EPSS Score
82.1%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
SonLogger before 6.4.1 is affected by Unauthenticated Arbitrary File Upload. An attacker can send a POST request to /Config/SaveUploadedHotspotLogoFile without any authentication or session header. There is no check for the file extension or content of the uploaded file.
SonLogger before 6.4.1 is affected by Unauthenticated Arbitrary File Upload. An attacker can send a POST request to /Config/SaveUploadedHotspotLogoFile without any authentication or session header. There is no check for the file extension or content of the uploaded file.
Active exploitation of CVE-2021-27964 has not been confirmed. The EPSS score is 82.1%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2021-27964 has a CVSS v3 base score of 9.8 (CRITICAL severity).
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Ranked by exploit probability (EPSS).