CVE-2024-40520

Name: CVE-2024-40520
Creator: NVD / NIST
Published: 2024-07-12T16:15:04.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.08%

Last modified Jun 17, 2026

CVE-2024-40520 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. SeaCMS 12.9 has a remote code execution vulnerability. The vulnerability is caused by admin_config_mark.php directly splicing and writing the user input data into inc_photowatermark_config.php without processing it, which allows authenticated attackers to exploit the vulnerability to execute arbitrary commands and obtain system permissions.. EPSS estimates a 1.08% chance of exploitation in the next 30 days.

Description

SeaCMS 12.9 has a remote code execution vulnerability. The vulnerability is caused by admin_config_mark.php directly splicing and writing the user input data into inc_photowatermark_config.php without processing it, which allows authenticated attackers to exploit the vulnerability to execute arbitrary commands and obtain system permissions.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.08%

60.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Seacms	Seacms	12.9

References

Timeline

Published: Jul 12, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-40520?

How severe is CVE-2024-40520?

CVE-2024-40520 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.

How do I fix CVE-2024-40520?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-40520?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST