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

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-40518
• https://gitee.com/fushuling/cve/blob/master/SeaCMS%2012.9%20admin_weixin.php%20code%20injection.md