CVSS v3
9.8
CRITICAL
EPSS Score
2.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
nc-cms through 2017-03-10 allows remote attackers to execute arbitrary PHP code via the "Upload File or Image" feature, with a .php filename and "Content-Type: application/octet-stream" to the index.php?action=file_manager_upload URI.
Technical details
- Published
- 2018-10-31
Frequently asked questions
What is CVE-2018-18874?
nc-cms through 2017-03-10 allows remote attackers to execute arbitrary PHP code via the "Upload File or Image" feature, with a .php filename and "Content-Type: application/octet-stream" to the index.php?action=file_manager_upload URI.
Is CVE-2018-18874 actively exploited?
Active exploitation of CVE-2018-18874 has not been confirmed. Its EPSS score was 2.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-18874?
CVE-2018-18874 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2018-18874 affecting your environment?
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