Is CVE-2018-14421 actively exploited?

No active exploitation of CVE-2018-14421 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2018-14421 be exploited remotely?

Yes. CVE-2018-14421 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2018-14421?

CVE-2018-14421 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2018-14421

CWE-94Published: July 20, 2018· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

SeaCMS v6.61 allows Remote Code execution by placing PHP code in a movie picture address (aka v_pic) to /admin/admin_video.php (aka /backend/admin_video.php). The code is executed by visiting /details/index.php. This can also be exploited through CSRF.

NVD Source

Technical Analysis

CVE-2018-14421 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.