Is CVE-2024-40521 actively exploited?

No active exploitation of CVE-2024-40521 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-40521 be exploited remotely?

Yes. CVE-2024-40521 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-40521?

CVE-2024-40521 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2024-40521

NVD-CWE-noinfoPublished: July 12, 2024· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

SeaCMS 12.9 has a remote code execution vulnerability. The vulnerability is due to the fact that although admin_template.php imposes certain restrictions on the edited file, attackers can still bypass the restrictions and write code in some way, allowing authenticated attackers to exploit the vulnerability to execute arbitrary commands and gain system privileges.

NVD Source

Technical Analysis

CVE-2024-40521 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

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.