CVE-2021-39426

An issue was discovered in /Upload/admin/admin_notify.php in Seacms 11.4 allows attackers to execute arbitrary php code via the notify1 parameter when the…

Critical · published December 15, 2022

CVSS v3.1
9.8
EPSS
1%
Percentile
59.8
In the wild
Unconfirmed
What it is

🚨 A sneaky parameter in Seacms 11.4 is your red flag! Attackers can slip in arbitrary PHP code through the notify1 field, making this an absolute nightmare for any admin. 🔥 Think of it like leaving a back door wide open in a high-security building. If the door isn’t locked and someone knows it’s there, they can waltz right in and do whatever they please without anyone noticing! If exploited, an attacker could execute any PHP code on your server, leading to data breaches, unauthorized changes, or even complete control over your website. Imagine the devastation if your sensitive data fell into the wrong hands or your site was turned into a malicious platform!

Put simply

Think of it like leaving a back door wide open in a high-security building. If the door isn’t locked and someone knows it’s there, they can waltz right in and do whatever they please without anyone noticing! This vulnerability in Seacms 11.4 allows attackers to execute arbitrary PHP code by manipulating the notify1 parameter when the action parameter is set to 'set'. This means that any PHP code could be run without any authentication checks, placing your entire application at risk.

What to do

If exploited, an attacker could execute any PHP code on your server, leading to data breaches, unauthorized changes, or even complete control over your website. Imagine the devastation if your sensitive data fell into the wrong hands or your site was turned into a malicious platform! Immediately patch Seacms to the latest version to fix this critical vulnerability. Review and sanitize user inputs to ensure harmful code cannot be executed. It’s also wise to limit permissions for the admin interface to reduce the attack surface! You've got this! By taking these steps, you can boost your security and protect your site from harm. 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00917 · 59.8th percentile
Published
2022-12-15T00:00Z
EPSS history
Timeline
  • 15 DEC 00:00Z
    An issue was discovered in /Upload/admin/admin_notify.php in Seacms 11.4 allows attackers to execute arbitrary php code via the notify1 parameter when the…
    cvelistv5