Seacms · Seacms · CVE-2021-39426
**Name of the Vulnerable Software and Affected Versions**
Seacms version 11.4
**Description**
An issue was discovered in the /Upload/admin/admin notify.php file, allowing attackers to execute arbitrary PHP code via the `notify1` parameter when the `action` parameter equals 'set'.
**Recommendations**
For Seacms version 11.4, consider restricting access to the /Upload/admin/admin notify.php file or disabling the `notify1` parameter when the `action` parameter equals 'set' until a patch is available. Avoid using the `notify1` parameter in the affected API endpoint until the issue is resolved.