CVE-2020-28187
CVSS v3
9.8
CRITICAL
EPSS Score
16.4 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Multiple directory traversal vulnerabilities in TerraMaster TOS <= 4.2.06 allow remote authenticated attackers to read, edit or delete any file within the filesystem via the (1) filename parameter to /tos/index.php?editor/fileGet, Event parameter to /include/ajax/logtable.php, or opt parameter to /include/core/index.php.
Technical details
- Published
- 2020-12-24
Frequently asked questions
What is CVE-2020-28187?
Multiple directory traversal vulnerabilities in TerraMaster TOS <= 4.2.06 allow remote authenticated attackers to read, edit or delete any file within the filesystem via the (1) filename parameter to /tos/index.php?editor/fileGet, Event parameter to /include/ajax/logtable.php, or opt parameter to /include/core/index.php.
Is CVE-2020-28187 actively exploited?
Active exploitation of CVE-2020-28187 has not been confirmed. Its EPSS score was 16.4% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-28187?
CVE-2020-28187 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2020-28187 affecting your environment?
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