CVE-2020-27387
CVSS v3
8.8
HIGH
EPSS Score
70.3 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
An unrestricted file upload issue in HorizontCMS through 1.0.0-beta allows an authenticated remote attacker (with access to the FileManager) to upload and execute arbitrary PHP code by uploading a PHP payload, and then using the FileManager's rename function to provide the payload (which will receive a random name on the server) with the PHP extension, and finally executing the PHP file via an HTTP GET request to /storage/<php_file_name>. NOTE: the vendor has patched this while leaving the version number at 1.0.0-beta.
Technical details
- Published
- 2020-11-05
Frequently asked questions
What is CVE-2020-27387?
An unrestricted file upload issue in HorizontCMS through 1.0.0-beta allows an authenticated remote attacker (with access to the FileManager) to upload and execute arbitrary PHP code by uploading a PHP payload, and then using the FileManager's rename function to provide the payload (which will receive a random name on the server) with the PHP extension, and finally executing the PHP file via an HTTP GET request to /storage/<php_file_name>. NOTE: the vendor has patched this while leaving the version number at 1.0.0-beta.
Is CVE-2020-27387 actively exploited?
Active exploitation of CVE-2020-27387 has not been confirmed. The EPSS score is 70.3%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-27387?
CVE-2020-27387 has a CVSS v3 base score of 8.8 (HIGH severity).
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