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CRITICAL

CVE-2018-18874

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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